# define Perl_re_intuit_start my_re_intuit_start
/* *These* symbols are masked to allow static link. */
# define Perl_pregexec my_pregexec
-# define Perl_reginitcolors my_reginitcolors
+# define Perl_reginitcolors my_reginitcolors
+# define Perl_regclass_swash my_regclass_swash
# define PERL_NO_GET_CONTEXT
-#endif
+#endif
/*SUPPRESS 112*/
/*
*
**** Alterations to Henry's code are...
****
- **** Copyright (c) 1991-2000, Larry Wall
+ **** Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ **** 2000, 2001, 2002, 2003, 2004, by Larry Wall and others
****
**** You may distribute under the terms of either the GNU General Public
**** License or the Artistic License, as specified in the README file.
#define PERL_IN_REGEXEC_C
#include "perl.h"
-#ifdef PERL_IN_XSUB_RE
-# if defined(PERL_CAPI) || defined(PERL_OBJECT)
-# include "XSUB.h"
-# endif
-#endif
-
#include "regcomp.h"
#define RF_tainted 1 /* tainted information used? */
#define RF_warned 2 /* warned about big count? */
#define RF_evaled 4 /* Did an EVAL with setting? */
#define RF_utf8 8 /* String contains multibyte chars? */
+#define RF_false 16 /* odd number of nested negatives */
-#define UTF (PL_reg_flags & RF_utf8)
+#define UTF ((PL_reg_flags & RF_utf8) != 0)
#define RS_init 1 /* eval environment created */
#define RS_set 2 /* replsv value is set */
#define STATIC static
#endif
+#define REGINCLASS(p,c) (ANYOF_FLAGS(p) ? reginclass(p,c,0,0) : ANYOF_BITMAP_TEST(p,*(c)))
+
/*
* Forwards.
*/
-#define REGINCLASS(p,c) (ANYOF_FLAGS(p) ? reginclass(p,c) : ANYOF_BITMAP_TEST(p,c))
-#define REGINCLASSUTF8(f,p) (ARG1(f) ? reginclassutf8(f,p) : swash_fetch((SV*)PL_regdata->data[ARG2(f)],p))
-
-#define CHR_SVLEN(sv) (UTF ? sv_len_utf8(sv) : SvCUR(sv))
-#define CHR_DIST(a,b) (UTF ? utf8_distance(a,b) : a - b)
+#define CHR_SVLEN(sv) (do_utf8 ? sv_len_utf8(sv) : SvCUR(sv))
+#define CHR_DIST(a,b) (PL_reg_match_utf8 ? utf8_distance(a,b) : a - b)
#define reghop_c(pos,off) ((char*)reghop((U8*)pos, off))
#define reghopmaybe_c(pos,off) ((char*)reghopmaybe((U8*)pos, off))
-#define HOP(pos,off) (UTF ? reghop((U8*)pos, off) : (U8*)(pos + off))
-#define HOPMAYBE(pos,off) (UTF ? reghopmaybe((U8*)pos, off) : (U8*)(pos + off))
+#define HOP(pos,off) (PL_reg_match_utf8 ? reghop((U8*)pos, off) : (U8*)(pos + off))
+#define HOPMAYBE(pos,off) (PL_reg_match_utf8 ? reghopmaybe((U8*)pos, off) : (U8*)(pos + off))
#define HOPc(pos,off) ((char*)HOP(pos,off))
#define HOPMAYBEc(pos,off) ((char*)HOPMAYBE(pos,off))
-static void restore_pos(pTHXo_ void *arg);
+#define HOPBACK(pos, off) ( \
+ (PL_reg_match_utf8) \
+ ? reghopmaybe((U8*)pos, -off) \
+ : (pos - off >= PL_bostr) \
+ ? (U8*)(pos - off) \
+ : (U8*)NULL \
+)
+#define HOPBACKc(pos, off) (char*)HOPBACK(pos, off)
+
+#define reghop3_c(pos,off,lim) ((char*)reghop3((U8*)pos, off, (U8*)lim))
+#define reghopmaybe3_c(pos,off,lim) ((char*)reghopmaybe3((U8*)pos, off, (U8*)lim))
+#define HOP3(pos,off,lim) (PL_reg_match_utf8 ? reghop3((U8*)pos, off, (U8*)lim) : (U8*)(pos + off))
+#define HOPMAYBE3(pos,off,lim) (PL_reg_match_utf8 ? reghopmaybe3((U8*)pos, off, (U8*)lim) : (U8*)(pos + off))
+#define HOP3c(pos,off,lim) ((char*)HOP3(pos,off,lim))
+#define HOPMAYBE3c(pos,off,lim) ((char*)HOPMAYBE3(pos,off,lim))
+
+#define LOAD_UTF8_CHARCLASS(a,b) STMT_START { if (!CAT2(PL_utf8_,a)) { ENTER; save_re_context(); (void)CAT2(is_utf8_, a)((U8*)b); LEAVE; } } STMT_END
+
+/* for use after a quantifier and before an EXACT-like node -- japhy */
+#define JUMPABLE(rn) ( \
+ OP(rn) == OPEN || OP(rn) == CLOSE || OP(rn) == EVAL || \
+ OP(rn) == SUSPEND || OP(rn) == IFMATCH || \
+ OP(rn) == PLUS || OP(rn) == MINMOD || \
+ (PL_regkind[(U8)OP(rn)] == CURLY && ARG1(rn) > 0) \
+)
+
+#define HAS_TEXT(rn) ( \
+ PL_regkind[(U8)OP(rn)] == EXACT || PL_regkind[(U8)OP(rn)] == REF \
+)
+/*
+ Search for mandatory following text node; for lookahead, the text must
+ follow but for lookbehind (rn->flags != 0) we skip to the next step.
+*/
+#define FIND_NEXT_IMPT(rn) STMT_START { \
+ while (JUMPABLE(rn)) \
+ if (OP(rn) == SUSPEND || PL_regkind[(U8)OP(rn)] == CURLY) \
+ rn = NEXTOPER(NEXTOPER(rn)); \
+ else if (OP(rn) == PLUS) \
+ rn = NEXTOPER(rn); \
+ else if (OP(rn) == IFMATCH) \
+ rn = (rn->flags == 0) ? NEXTOPER(NEXTOPER(rn)) : rn + ARG(rn); \
+ else rn += NEXT_OFF(rn); \
+} STMT_END
+
+static void restore_pos(pTHX_ void *arg);
STATIC CHECKPOINT
S_regcppush(pTHX_ I32 parenfloor)
{
- dTHR;
int retval = PL_savestack_ix;
- int i = (PL_regsize - parenfloor) * 4;
+#define REGCP_PAREN_ELEMS 4
+ int paren_elems_to_push = (PL_regsize - parenfloor) * REGCP_PAREN_ELEMS;
int p;
- SSCHECK(i + 5);
+ if (paren_elems_to_push < 0)
+ Perl_croak(aTHX_ "panic: paren_elems_to_push < 0");
+
+#define REGCP_OTHER_ELEMS 6
+ SSGROW(paren_elems_to_push + REGCP_OTHER_ELEMS);
for (p = PL_regsize; p > parenfloor; p--) {
+/* REGCP_PARENS_ELEMS are pushed per pairs of parentheses. */
SSPUSHINT(PL_regendp[p]);
SSPUSHINT(PL_regstartp[p]);
SSPUSHPTR(PL_reg_start_tmp[p]);
SSPUSHINT(p);
}
+/* REGCP_OTHER_ELEMS are pushed in any case, parentheses or no. */
SSPUSHINT(PL_regsize);
SSPUSHINT(*PL_reglastparen);
+ SSPUSHINT(*PL_reglastcloseparen);
SSPUSHPTR(PL_reginput);
- SSPUSHINT(i + 3);
- SSPUSHINT(SAVEt_REGCONTEXT);
+#define REGCP_FRAME_ELEMS 2
+/* REGCP_FRAME_ELEMS are part of the REGCP_OTHER_ELEMS and
+ * are needed for the regexp context stack bookkeeping. */
+ SSPUSHINT(paren_elems_to_push + REGCP_OTHER_ELEMS - REGCP_FRAME_ELEMS);
+ SSPUSHINT(SAVEt_REGCONTEXT); /* Magic cookie. */
+
return retval;
}
STATIC char *
S_regcppop(pTHX)
{
- dTHR;
- I32 i = SSPOPINT;
+ I32 i;
U32 paren = 0;
char *input;
I32 tmps;
- assert(i == SAVEt_REGCONTEXT);
+
+ /* Pop REGCP_OTHER_ELEMS before the parentheses loop starts. */
i = SSPOPINT;
+ assert(i == SAVEt_REGCONTEXT); /* Check that the magic cookie is there. */
+ i = SSPOPINT; /* Parentheses elements to pop. */
input = (char *) SSPOPPTR;
+ *PL_reglastcloseparen = SSPOPINT;
*PL_reglastparen = SSPOPINT;
PL_regsize = SSPOPINT;
- for (i -= 3; i > 0; i -= 4) {
+
+ /* Now restore the parentheses context. */
+ for (i -= (REGCP_OTHER_ELEMS - REGCP_FRAME_ELEMS);
+ i > 0; i -= REGCP_PAREN_ELEMS) {
paren = (U32)SSPOPINT;
PL_reg_start_tmp[paren] = (char *) SSPOPPTR;
PL_regstartp[paren] = SSPOPINT;
DEBUG_r(
PerlIO_printf(Perl_debug_log,
" restoring \\%"UVuf" to %"IVdf"(%"IVdf")..%"IVdf"%s\n",
- (UV)paren, (IV)PL_regstartp[paren],
+ (UV)paren, (IV)PL_regstartp[paren],
(IV)(PL_reg_start_tmp[paren] - PL_bostr),
- (IV)PL_regendp[paren],
+ (IV)PL_regendp[paren],
(paren > *PL_reglastparen ? "(no)" : ""));
);
}
DEBUG_r(
- if (*PL_reglastparen + 1 <= PL_regnpar) {
+ if ((I32)(*PL_reglastparen + 1) <= PL_regnpar) {
PerlIO_printf(Perl_debug_log,
" restoring \\%"IVdf"..\\%"IVdf" to undef\n",
(IV)(*PL_reglastparen + 1), (IV)PL_regnpar);
}
);
- for (paren = *PL_reglastparen + 1; paren <= PL_regnpar; paren++) {
- if (paren > PL_regsize)
+#if 1
+ /* It would seem that the similar code in regtry()
+ * already takes care of this, and in fact it is in
+ * a better location to since this code can #if 0-ed out
+ * but the code in regtry() is needed or otherwise tests
+ * requiring null fields (pat.t#187 and split.t#{13,14}
+ * (as of patchlevel 7877) will fail. Then again,
+ * this code seems to be necessary or otherwise
+ * building DynaLoader will fail:
+ * "Error: '*' not in typemap in DynaLoader.xs, line 164"
+ * --jhi */
+ for (paren = *PL_reglastparen + 1; (I32)paren <= PL_regnpar; paren++) {
+ if ((I32)paren > PL_regsize)
PL_regstartp[paren] = -1;
PL_regendp[paren] = -1;
}
+#endif
return input;
}
STATIC char *
S_regcp_set_to(pTHX_ I32 ss)
{
- dTHR;
I32 tmp = PL_savestack_ix;
PL_savestack_ix = ss;
/* nosave: For optimizations. */
{
return
- regexec_flags(prog, stringarg, strend, strbeg, minend, screamer, NULL,
+ regexec_flags(prog, stringarg, strend, strbeg, minend, screamer, NULL,
nosave ? 0 : REXEC_COPY_STR);
}
STATIC void
S_cache_re(pTHX_ regexp *prog)
{
- dTHR;
PL_regprecomp = prog->precomp; /* Needed for FAIL. */
#ifdef DEBUGGING
PL_regprogram = prog->program;
#endif
PL_regnpar = prog->nparens;
- PL_regdata = prog->data;
- PL_reg_re = prog;
+ PL_regdata = prog->data;
+ PL_reg_re = prog;
}
-/*
+/*
* Need to implement the following flags for reg_anch:
*
* USE_INTUIT_NOML - Useful to call re_intuit_start() first
Perl_re_intuit_start(pTHX_ regexp *prog, SV *sv, char *strpos,
char *strend, U32 flags, re_scream_pos_data *data)
{
- register I32 start_shift;
+ register I32 start_shift = 0;
/* Should be nonnegative! */
- register I32 end_shift;
+ register I32 end_shift = 0;
register char *s;
register SV *check;
char *strbeg;
char *t;
+ int do_utf8 = sv ? SvUTF8(sv) : 0; /* if no sv we have to assume bytes */
I32 ml_anch;
- char *tmp;
register char *other_last = Nullch; /* other substr checked before this */
- char *check_at; /* check substr found at this pos */
+ char *check_at = Nullch; /* check substr found at this pos */
#ifdef DEBUGGING
char *i_strpos = strpos;
+ SV *dsv = PERL_DEBUG_PAD_ZERO(0);
#endif
+ RX_MATCH_UTF8_set(prog,do_utf8);
- DEBUG_r( if (!PL_colorset) reginitcolors() );
- DEBUG_r(PerlIO_printf(Perl_debug_log,
- "%sGuessing start of match, REx%s `%s%.60s%s%s' against `%s%.*s%s%s'...\n",
- PL_colors[4],PL_colors[5],PL_colors[0],
- prog->precomp,
- PL_colors[1],
- (strlen(prog->precomp) > 60 ? "..." : ""),
- PL_colors[0],
- (int)(strend - strpos > 60 ? 60 : strend - strpos),
- strpos, PL_colors[1],
- (strend - strpos > 60 ? "..." : ""))
- );
+ if (prog->reganch & ROPT_UTF8) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ "UTF-8 regex...\n"));
+ PL_reg_flags |= RF_utf8;
+ }
+ DEBUG_r({
+ char *s = PL_reg_match_utf8 ?
+ sv_uni_display(dsv, sv, 60, UNI_DISPLAY_REGEX) :
+ strpos;
+ int len = PL_reg_match_utf8 ?
+ strlen(s) : strend - strpos;
+ if (!PL_colorset)
+ reginitcolors();
+ if (PL_reg_match_utf8)
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ "UTF-8 target...\n"));
+ PerlIO_printf(Perl_debug_log,
+ "%sGuessing start of match, REx%s `%s%.60s%s%s' against `%s%.*s%s%s'...\n",
+ PL_colors[4],PL_colors[5],PL_colors[0],
+ prog->precomp,
+ PL_colors[1],
+ (strlen(prog->precomp) > 60 ? "..." : ""),
+ PL_colors[0],
+ (int)(len > 60 ? 60 : len),
+ s, PL_colors[1],
+ (len > 60 ? "..." : "")
+ );
+ });
+
+ /* CHR_DIST() would be more correct here but it makes things slow. */
if (prog->minlen > strend - strpos) {
- DEBUG_r(PerlIO_printf(Perl_debug_log, "String too short...\n"));
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ "String too short... [re_intuit_start]\n"));
goto fail;
}
strbeg = (sv && SvPOK(sv)) ? strend - SvCUR(sv) : strpos;
- check = prog->check_substr;
+ PL_regeol = strend;
+ if (do_utf8) {
+ if (!prog->check_utf8 && prog->check_substr)
+ to_utf8_substr(prog);
+ check = prog->check_utf8;
+ } else {
+ if (!prog->check_substr && prog->check_utf8)
+ to_byte_substr(prog);
+ check = prog->check_substr;
+ }
+ if (check == &PL_sv_undef) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ "Non-utf string cannot match utf check string\n"));
+ goto fail;
+ }
if (prog->reganch & ROPT_ANCH) { /* Match at beg-of-str or after \n */
ml_anch = !( (prog->reganch & ROPT_ANCH_SINGLE)
|| ( (prog->reganch & ROPT_ANCH_BOL)
&& !PL_multiline ) ); /* Check after \n? */
if (!ml_anch) {
- if ( !(prog->reganch & ROPT_ANCH_GPOS) /* Checked by the caller */
+ if ( !(prog->reganch & (ROPT_ANCH_GPOS /* Checked by the caller */
+ | ROPT_IMPLICIT)) /* not a real BOL */
/* SvCUR is not set on references: SvRV and SvPVX overlap */
&& sv && !SvROK(sv)
&& (strpos != strbeg)) {
DEBUG_r(PerlIO_printf(Perl_debug_log, "Not at start...\n"));
goto fail;
}
- if (prog->check_offset_min == prog->check_offset_max) {
+ if (prog->check_offset_min == prog->check_offset_max &&
+ !(prog->reganch & ROPT_CANY_SEEN)) {
/* Substring at constant offset from beg-of-str... */
I32 slen;
- PL_regeol = strend; /* Used in HOP() */
- s = HOPc(strpos, prog->check_offset_min);
+ s = HOP3c(strpos, prog->check_offset_min, strend);
if (SvTAIL(check)) {
slen = SvCUR(check); /* >= 1 */
- if ( strend - s > slen || strend - s < slen - 1
+ if ( strend - s > slen || strend - s < slen - 1
|| (strend - s == slen && strend[-1] != '\n')) {
DEBUG_r(PerlIO_printf(Perl_debug_log, "String too long...\n"));
goto fail_finish;
if (!ml_anch) {
I32 end = prog->check_offset_max + CHR_SVLEN(check)
- (SvTAIL(check) != 0);
- I32 eshift = strend - s - end;
+ I32 eshift = CHR_DIST((U8*)strend, (U8*)s) - end;
if (end_shift < eshift)
end_shift = eshift;
|| ( BmRARE(check) == '\n'
&& (BmPREVIOUS(check) == SvCUR(check) - 1)
&& SvTAIL(check) ))
- s = screaminstr(sv, check,
+ s = screaminstr(sv, check,
start_shift + (s - strbeg), end_shift, pp, 0);
else
goto fail_finish;
+ /* we may be pointing at the wrong string */
+ if (s && RX_MATCH_COPIED(prog))
+ s = strbeg + (s - SvPVX(sv));
if (data)
*data->scream_olds = s;
}
+ else if (prog->reganch & ROPT_CANY_SEEN)
+ s = fbm_instr((U8*)(s + start_shift),
+ (U8*)(strend - end_shift),
+ check, PL_multiline ? FBMrf_MULTILINE : 0);
else
- s = fbm_instr((unsigned char*)s + start_shift,
- (unsigned char*)strend - end_shift,
+ s = fbm_instr(HOP3(s, start_shift, strend),
+ HOP3(strend, -end_shift, strbeg),
check, PL_multiline ? FBMrf_MULTILINE : 0);
/* Update the count-of-usability, remove useless subpatterns,
DEBUG_r(PerlIO_printf(Perl_debug_log, "%s %s substr `%s%.*s%s'%s%s",
(s ? "Found" : "Did not find"),
- ((check == prog->anchored_substr) ? "anchored" : "floating"),
+ (check == (do_utf8 ? prog->anchored_utf8 : prog->anchored_substr) ? "anchored" : "floating"),
PL_colors[0],
(int)(SvCUR(check) - (SvTAIL(check)!=0)),
SvPVX(check),
Probably it is right to do no SCREAM here...
*/
- if (prog->float_substr && prog->anchored_substr) {
+ if (do_utf8 ? (prog->float_utf8 && prog->anchored_utf8) : (prog->float_substr && prog->anchored_substr)) {
/* Take into account the "other" substring. */
/* XXXX May be hopelessly wrong for UTF... */
if (!other_last)
other_last = strpos;
- if (check == prog->float_substr) {
+ if (check == (do_utf8 ? prog->float_utf8 : prog->float_substr)) {
do_other_anchored:
{
- char *last = s - start_shift, *last1, *last2;
+ char *last = HOP3c(s, -start_shift, strbeg), *last1, *last2;
char *s1 = s;
+ SV* must;
- tmp = PL_bostr;
t = s - prog->check_offset_max;
if (s - strpos > prog->check_offset_max /* signed-corrected t > strpos */
- && (!(prog->reganch & ROPT_UTF8)
- || (PL_bostr = strpos, /* Used in regcopmaybe() */
- (t = reghopmaybe_c(s, -(prog->check_offset_max)))
+ && (!do_utf8
+ || ((t = reghopmaybe3_c(s, -(prog->check_offset_max), strpos))
&& t > strpos)))
/* EMPTY */;
else
t = strpos;
- t += prog->anchored_offset;
+ t = HOP3c(t, prog->anchored_offset, strend);
if (t < other_last) /* These positions already checked */
t = other_last;
- PL_bostr = tmp;
- last2 = last1 = strend - prog->minlen;
+ last2 = last1 = HOP3c(strend, -prog->minlen, strbeg);
if (last < last1)
last1 = last;
/* XXXX It is not documented what units *_offsets are in. Assume bytes. */
/* On end-of-str: see comment below. */
- s = fbm_instr((unsigned char*)t,
- (unsigned char*)last1 + prog->anchored_offset
- + SvCUR(prog->anchored_substr)
- - (SvTAIL(prog->anchored_substr)!=0),
- prog->anchored_substr, PL_multiline ? FBMrf_MULTILINE : 0);
- DEBUG_r(PerlIO_printf(Perl_debug_log, "%s anchored substr `%s%.*s%s'%s",
+ must = do_utf8 ? prog->anchored_utf8 : prog->anchored_substr;
+ if (must == &PL_sv_undef) {
+ s = (char*)NULL;
+ DEBUG_r(must = prog->anchored_utf8); /* for debug */
+ }
+ else
+ s = fbm_instr(
+ (unsigned char*)t,
+ HOP3(HOP3(last1, prog->anchored_offset, strend)
+ + SvCUR(must), -(SvTAIL(must)!=0), strbeg),
+ must,
+ PL_multiline ? FBMrf_MULTILINE : 0
+ );
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ "%s anchored substr `%s%.*s%s'%s",
(s ? "Found" : "Contradicts"),
PL_colors[0],
- (int)(SvCUR(prog->anchored_substr)
- - (SvTAIL(prog->anchored_substr)!=0)),
- SvPVX(prog->anchored_substr),
- PL_colors[1], (SvTAIL(prog->anchored_substr) ? "$" : "")));
+ (int)(SvCUR(must)
+ - (SvTAIL(must)!=0)),
+ SvPVX(must),
+ PL_colors[1], (SvTAIL(must) ? "$" : "")));
if (!s) {
if (last1 >= last2) {
DEBUG_r(PerlIO_printf(Perl_debug_log,
}
DEBUG_r(PerlIO_printf(Perl_debug_log,
", trying floating at offset %ld...\n",
- (long)(s1 + 1 - i_strpos)));
- PL_regeol = strend; /* Used in HOP() */
- other_last = last1 + prog->anchored_offset + 1;
- s = HOPc(last, 1);
+ (long)(HOP3c(s1, 1, strend) - i_strpos)));
+ other_last = HOP3c(last1, prog->anchored_offset+1, strend);
+ s = HOP3c(last, 1, strend);
goto restart;
}
else {
DEBUG_r(PerlIO_printf(Perl_debug_log, " at offset %ld...\n",
(long)(s - i_strpos)));
- t = s - prog->anchored_offset;
- other_last = s + 1;
+ t = HOP3c(s, -prog->anchored_offset, strbeg);
+ other_last = HOP3c(s, 1, strend);
s = s1;
if (t == strpos)
goto try_at_start;
}
}
else { /* Take into account the floating substring. */
- char *last, *last1;
- char *s1 = s;
-
- t = s - start_shift;
- last1 = last = strend - prog->minlen + prog->float_min_offset;
- if (last - t > prog->float_max_offset)
- last = t + prog->float_max_offset;
- s = t + prog->float_min_offset;
- if (s < other_last)
- s = other_last;
+ char *last, *last1;
+ char *s1 = s;
+ SV* must;
+
+ t = HOP3c(s, -start_shift, strbeg);
+ last1 = last =
+ HOP3c(strend, -prog->minlen + prog->float_min_offset, strbeg);
+ if (CHR_DIST((U8*)last, (U8*)t) > prog->float_max_offset)
+ last = HOP3c(t, prog->float_max_offset, strend);
+ s = HOP3c(t, prog->float_min_offset, strend);
+ if (s < other_last)
+ s = other_last;
/* XXXX It is not documented what units *_offsets are in. Assume bytes. */
- /* fbm_instr() takes into account exact value of end-of-str
- if the check is SvTAIL(ed). Since false positives are OK,
- and end-of-str is not later than strend we are OK. */
+ must = do_utf8 ? prog->float_utf8 : prog->float_substr;
+ /* fbm_instr() takes into account exact value of end-of-str
+ if the check is SvTAIL(ed). Since false positives are OK,
+ and end-of-str is not later than strend we are OK. */
+ if (must == &PL_sv_undef) {
+ s = (char*)NULL;
+ DEBUG_r(must = prog->float_utf8); /* for debug message */
+ }
+ else
s = fbm_instr((unsigned char*)s,
- (unsigned char*)last + SvCUR(prog->float_substr)
- - (SvTAIL(prog->float_substr)!=0),
- prog->float_substr, PL_multiline ? FBMrf_MULTILINE : 0);
- DEBUG_r(PerlIO_printf(Perl_debug_log, "%s floating substr `%s%.*s%s'%s",
- (s ? "Found" : "Contradicts"),
- PL_colors[0],
- (int)(SvCUR(prog->float_substr)
- - (SvTAIL(prog->float_substr)!=0)),
- SvPVX(prog->float_substr),
- PL_colors[1], (SvTAIL(prog->float_substr) ? "$" : "")));
- if (!s) {
- if (last1 == last) {
- DEBUG_r(PerlIO_printf(Perl_debug_log,
- ", giving up...\n"));
- goto fail_finish;
- }
+ (unsigned char*)last + SvCUR(must)
+ - (SvTAIL(must)!=0),
+ must, PL_multiline ? FBMrf_MULTILINE : 0);
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%s floating substr `%s%.*s%s'%s",
+ (s ? "Found" : "Contradicts"),
+ PL_colors[0],
+ (int)(SvCUR(must) - (SvTAIL(must)!=0)),
+ SvPVX(must),
+ PL_colors[1], (SvTAIL(must) ? "$" : "")));
+ if (!s) {
+ if (last1 == last) {
DEBUG_r(PerlIO_printf(Perl_debug_log,
- ", trying anchored starting at offset %ld...\n",
- (long)(s1 + 1 - i_strpos)));
- other_last = last + 1;
- PL_regeol = strend; /* Used in HOP() */
- s = HOPc(t, 1);
- goto restart;
- }
- else {
- DEBUG_r(PerlIO_printf(Perl_debug_log, " at offset %ld...\n",
- (long)(s - i_strpos)));
- other_last = s + 1;
- s = s1;
- if (t == strpos)
- goto try_at_start;
- goto try_at_offset;
+ ", giving up...\n"));
+ goto fail_finish;
}
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ ", trying anchored starting at offset %ld...\n",
+ (long)(s1 + 1 - i_strpos)));
+ other_last = last;
+ s = HOP3c(t, 1, strend);
+ goto restart;
+ }
+ else {
+ DEBUG_r(PerlIO_printf(Perl_debug_log, " at offset %ld...\n",
+ (long)(s - i_strpos)));
+ other_last = s; /* Fix this later. --Hugo */
+ s = s1;
+ if (t == strpos)
+ goto try_at_start;
+ goto try_at_offset;
+ }
}
}
t = s - prog->check_offset_max;
- tmp = PL_bostr;
if (s - strpos > prog->check_offset_max /* signed-corrected t > strpos */
- && (!(prog->reganch & ROPT_UTF8)
- || (PL_bostr = strpos, /* Used in regcopmaybe() */
- ((t = reghopmaybe_c(s, -(prog->check_offset_max)))
- && t > strpos)))) {
- PL_bostr = tmp;
+ && (!do_utf8
+ || ((t = reghopmaybe3_c(s, -prog->check_offset_max, strpos))
+ && t > strpos))) {
/* Fixed substring is found far enough so that the match
cannot start at strpos. */
try_at_offset:
while (t < strend - prog->minlen) {
if (*t == '\n') {
if (t < check_at - prog->check_offset_min) {
- if (prog->anchored_substr) {
+ if (do_utf8 ? prog->anchored_utf8 : prog->anchored_substr) {
/* Since we moved from the found position,
we definitely contradict the found anchored
substr. Due to the above check we do not
Thus we can arrive here only if check substr
is float. Redo checking for "other"=="fixed".
*/
- strpos = t + 1;
+ strpos = t + 1;
DEBUG_r(PerlIO_printf(Perl_debug_log, "Found /%s^%s/m at offset %ld, rescanning for anchored from offset %ld...\n",
PL_colors[0],PL_colors[1], (long)(strpos - i_strpos), (long)(strpos - i_strpos + prog->anchored_offset)));
goto do_other_anchored;
}
s = t;
set_useful:
- ++BmUSEFUL(prog->check_substr); /* hooray/5 */
+ ++BmUSEFUL(do_utf8 ? prog->check_utf8 : prog->check_substr); /* hooray/5 */
}
else {
- PL_bostr = tmp;
/* The found string does not prohibit matching at strpos,
- no optimization of calling REx engine can be performed,
unless it was an MBOL and we are not after MBOL,
);
success_at_start:
if (!(prog->reganch & ROPT_NAUGHTY) /* XXXX If strpos moved? */
- && prog->check_substr /* Could be deleted already */
- && --BmUSEFUL(prog->check_substr) < 0
- && prog->check_substr == prog->float_substr)
+ && (do_utf8 ? (
+ prog->check_utf8 /* Could be deleted already */
+ && --BmUSEFUL(prog->check_utf8) < 0
+ && (prog->check_utf8 == prog->float_utf8)
+ ) : (
+ prog->check_substr /* Could be deleted already */
+ && --BmUSEFUL(prog->check_substr) < 0
+ && (prog->check_substr == prog->float_substr)
+ )))
{
/* If flags & SOMETHING - do not do it many times on the same match */
DEBUG_r(PerlIO_printf(Perl_debug_log, "... Disabling check substring...\n"));
- SvREFCNT_dec(prog->check_substr);
- prog->check_substr = Nullsv; /* disable */
- prog->float_substr = Nullsv; /* clear */
+ SvREFCNT_dec(do_utf8 ? prog->check_utf8 : prog->check_substr);
+ if (do_utf8 ? prog->check_substr : prog->check_utf8)
+ SvREFCNT_dec(do_utf8 ? prog->check_substr : prog->check_utf8);
+ prog->check_substr = prog->check_utf8 = Nullsv; /* disable */
+ prog->float_substr = prog->float_utf8 = Nullsv; /* clear */
check = Nullsv; /* abort */
s = strpos;
/* XXXX This is a remnant of the old implementation. It
regstclass does not come from lookahead... */
/* If regstclass takes bytelength more than 1: If charlength==1, OK.
This leaves EXACTF only, which is dealt with in find_byclass(). */
+ U8* str = (U8*)STRING(prog->regstclass);
int cl_l = (PL_regkind[(U8)OP(prog->regstclass)] == EXACT
- ? STR_LEN(prog->regstclass)
+ ? CHR_DIST(str+STR_LEN(prog->regstclass), str)
: 1);
- char *endpos = (prog->anchored_substr || ml_anch)
- ? s + (prog->minlen? cl_l : 0)
- : (prog->float_substr ? check_at - start_shift + cl_l
- : strend) ;
+ char *endpos = (prog->anchored_substr || prog->anchored_utf8 || ml_anch)
+ ? HOP3c(s, (prog->minlen ? cl_l : 0), strend)
+ : (prog->float_substr || prog->float_utf8
+ ? HOP3c(HOP3c(check_at, -start_shift, strbeg),
+ cl_l, strend)
+ : strend);
char *startpos = strbeg;
t = s;
- if (prog->reganch & ROPT_UTF8) {
- PL_regdata = prog->data; /* Used by REGINCLASS UTF logic */
- PL_bostr = startpos;
- }
- s = find_byclass(prog, prog->regstclass, s, endpos, startpos, 1);
+ cache_re(prog);
+ s = find_byclass(prog, prog->regstclass, s, endpos, startpos, 1);
if (!s) {
#ifdef DEBUGGING
- char *what;
+ char *what = 0;
#endif
if (endpos == strend) {
DEBUG_r( PerlIO_printf(Perl_debug_log,
if ((prog->reganch & ROPT_ANCH) && !ml_anch)
goto fail;
/* Contradict one of substrings */
- if (prog->anchored_substr) {
- if (prog->anchored_substr == check) {
+ if (prog->anchored_substr || prog->anchored_utf8) {
+ if ((do_utf8 ? prog->anchored_utf8 : prog->anchored_substr) == check) {
DEBUG_r( what = "anchored" );
hop_and_restart:
- PL_regeol = strend; /* Used in HOP() */
- s = HOPc(t, 1);
+ s = HOP3c(t, 1, strend);
if (s + start_shift + end_shift > strend) {
/* XXXX Should be taken into account earlier? */
DEBUG_r( PerlIO_printf(Perl_debug_log,
if (t + start_shift >= check_at) /* Contradicts floating=check */
goto retry_floating_check;
/* Recheck anchored substring, but not floating... */
- s = check_at;
+ s = check_at;
if (!check)
goto giveup;
DEBUG_r( PerlIO_printf(Perl_debug_log,
PL_colors[0],PL_colors[1], (long)(t - i_strpos)) );
goto try_at_offset;
}
- if (!prog->float_substr) /* Could have been deleted */
+ if (!(do_utf8 ? prog->float_utf8 : prog->float_substr)) /* Could have been deleted */
goto fail;
/* Check is floating subtring. */
retry_floating_check:
DEBUG_r( what = "floating" );
goto hop_and_restart;
}
- DEBUG_r( if (t != s)
- PerlIO_printf(Perl_debug_log,
+ if (t != s) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
"By STCLASS: moving %ld --> %ld\n",
- (long)(t - i_strpos), (long)(s - i_strpos));
- else
- PerlIO_printf(Perl_debug_log,
- "Does not contradict STCLASS...\n") );
+ (long)(t - i_strpos), (long)(s - i_strpos))
+ );
+ }
+ else {
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ "Does not contradict STCLASS...\n");
+ );
+ }
}
giveup:
DEBUG_r(PerlIO_printf(Perl_debug_log, "%s%s:%s match at offset %ld\n",
return s;
fail_finish: /* Substring not found */
- if (prog->check_substr) /* could be removed already */
- BmUSEFUL(prog->check_substr) += 5; /* hooray */
+ if (prog->check_substr || prog->check_utf8) /* could be removed already */
+ BmUSEFUL(do_utf8 ? prog->check_utf8 : prog->check_substr) += 5; /* hooray */
fail:
DEBUG_r(PerlIO_printf(Perl_debug_log, "%sMatch rejected by optimizer%s\n",
PL_colors[4],PL_colors[5]));
I32 doevery = (prog->reganch & ROPT_SKIP) == 0;
char *m;
STRLEN ln;
+ STRLEN lnc;
unsigned int c1;
unsigned int c2;
char *e;
register I32 tmp = 1; /* Scratch variable? */
+ register bool do_utf8 = PL_reg_match_utf8;
/* We know what class it must start with. */
switch (OP(c)) {
- case ANYOFUTF8:
- while (s < strend) {
- if (REGINCLASSUTF8(c, (U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
- else
- tmp = doevery;
- }
- else
- tmp = 1;
- s += UTF8SKIP(s);
+ case ANYOF:
+ if (do_utf8) {
+ while (s < strend) {
+ if ((ANYOF_FLAGS(c) & ANYOF_UNICODE) ||
+ !UTF8_IS_INVARIANT((U8)s[0]) ?
+ reginclass(c, (U8*)s, 0, do_utf8) :
+ REGINCLASS(c, (U8*)s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
+ else
+ tmp = 1;
+ s += UTF8SKIP(s);
+ }
+ }
+ else {
+ while (s < strend) {
+ STRLEN skip = 1;
+
+ if (REGINCLASS(c, (U8*)s) ||
+ (ANYOF_FOLD_SHARP_S(c, s, strend) &&
+ /* The assignment of 2 is intentional:
+ * for the folded sharp s, the skip is 2. */
+ (skip = SHARP_S_SKIP))) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
+ else
+ tmp = 1;
+ s += skip;
+ }
}
break;
- case ANYOF:
+ case CANY:
while (s < strend) {
- if (REGINCLASS(c, *(U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
- else
- tmp = doevery;
- }
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
else
- tmp = 1;
+ tmp = doevery;
s++;
}
break;
case EXACTF:
- m = STRING(c);
- ln = STR_LEN(c);
- c1 = *(U8*)m;
- c2 = PL_fold[c1];
+ m = STRING(c);
+ ln = STR_LEN(c); /* length to match in octets/bytes */
+ lnc = (I32) ln; /* length to match in characters */
+ if (UTF) {
+ STRLEN ulen1, ulen2;
+ U8 *sm = (U8 *) m;
+ U8 tmpbuf1[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf2[UTF8_MAXLEN_UCLC+1];
+
+ to_utf8_lower((U8*)m, tmpbuf1, &ulen1);
+ to_utf8_upper((U8*)m, tmpbuf2, &ulen2);
+
+ c1 = utf8n_to_uvchr(tmpbuf1, UTF8_MAXLEN_UCLC,
+ 0, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
+ c2 = utf8n_to_uvchr(tmpbuf2, UTF8_MAXLEN_UCLC,
+ 0, ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
+ lnc = 0;
+ while (sm < ((U8 *) m + ln)) {
+ lnc++;
+ sm += UTF8SKIP(sm);
+ }
+ }
+ else {
+ c1 = *(U8*)m;
+ c2 = PL_fold[c1];
+ }
goto do_exactf;
case EXACTFL:
- m = STRING(c);
- ln = STR_LEN(c);
+ m = STRING(c);
+ ln = STR_LEN(c);
+ lnc = (I32) ln;
c1 = *(U8*)m;
c2 = PL_fold_locale[c1];
do_exactf:
- e = strend - ln;
+ e = HOP3c(strend, -((I32)lnc), s);
if (norun && e < s)
e = s; /* Due to minlen logic of intuit() */
- /* Here it is NOT UTF! */
- if (c1 == c2) {
- while (s <= e) {
- if ( *(U8*)s == c1
- && (ln == 1 || !(OP(c) == EXACTF
- ? ibcmp(s, m, ln)
- : ibcmp_locale(s, m, ln)))
- && (norun || regtry(prog, s)) )
- goto got_it;
- s++;
+
+ /* The idea in the EXACTF* cases is to first find the
+ * first character of the EXACTF* node and then, if
+ * necessary, case-insensitively compare the full
+ * text of the node. The c1 and c2 are the first
+ * characters (though in Unicode it gets a bit
+ * more complicated because there are more cases
+ * than just upper and lower: one needs to use
+ * the so-called folding case for case-insensitive
+ * matching (called "loose matching" in Unicode).
+ * ibcmp_utf8() will do just that. */
+
+ if (do_utf8) {
+ UV c, f;
+ U8 tmpbuf [UTF8_MAXLEN+1];
+ U8 foldbuf[UTF8_MAXLEN_FOLD+1];
+ STRLEN len, foldlen;
+
+ if (c1 == c2) {
+ /* Upper and lower of 1st char are equal -
+ * probably not a "letter". */
+ while (s <= e) {
+ c = utf8n_to_uvchr((U8*)s, UTF8_MAXLEN, &len,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ if ( c == c1
+ && (ln == len ||
+ ibcmp_utf8(s, (char **)0, 0, do_utf8,
+ m, (char **)0, ln, (bool)UTF))
+ && (norun || regtry(prog, s)) )
+ goto got_it;
+ else {
+ uvchr_to_utf8(tmpbuf, c);
+ f = to_utf8_fold(tmpbuf, foldbuf, &foldlen);
+ if ( f != c
+ && (f == c1 || f == c2)
+ && (ln == foldlen ||
+ !ibcmp_utf8((char *) foldbuf,
+ (char **)0, foldlen, do_utf8,
+ m,
+ (char **)0, ln, (bool)UTF))
+ && (norun || regtry(prog, s)) )
+ goto got_it;
+ }
+ s += len;
+ }
}
- } else {
- while (s <= e) {
- if ( (*(U8*)s == c1 || *(U8*)s == c2)
- && (ln == 1 || !(OP(c) == EXACTF
- ? ibcmp(s, m, ln)
- : ibcmp_locale(s, m, ln)))
- && (norun || regtry(prog, s)) )
- goto got_it;
- s++;
+ else {
+ while (s <= e) {
+ c = utf8n_to_uvchr((U8*)s, UTF8_MAXLEN, &len,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+
+ /* Handle some of the three Greek sigmas cases.
+ * Note that not all the possible combinations
+ * are handled here: some of them are handled
+ * by the standard folding rules, and some of
+ * them (the character class or ANYOF cases)
+ * are handled during compiletime in
+ * regexec.c:S_regclass(). */
+ if (c == (UV)UNICODE_GREEK_CAPITAL_LETTER_SIGMA ||
+ c == (UV)UNICODE_GREEK_SMALL_LETTER_FINAL_SIGMA)
+ c = (UV)UNICODE_GREEK_SMALL_LETTER_SIGMA;
+
+ if ( (c == c1 || c == c2)
+ && (ln == len ||
+ ibcmp_utf8(s, (char **)0, 0, do_utf8,
+ m, (char **)0, ln, (bool)UTF))
+ && (norun || regtry(prog, s)) )
+ goto got_it;
+ else {
+ uvchr_to_utf8(tmpbuf, c);
+ f = to_utf8_fold(tmpbuf, foldbuf, &foldlen);
+ if ( f != c
+ && (f == c1 || f == c2)
+ && (ln == foldlen ||
+ !ibcmp_utf8((char *) foldbuf,
+ (char **)0, foldlen, do_utf8,
+ m,
+ (char **)0, ln, (bool)UTF))
+ && (norun || regtry(prog, s)) )
+ goto got_it;
+ }
+ s += len;
+ }
}
}
+ else {
+ if (c1 == c2)
+ while (s <= e) {
+ if ( *(U8*)s == c1
+ && (ln == 1 || !(OP(c) == EXACTF
+ ? ibcmp(s, m, ln)
+ : ibcmp_locale(s, m, ln)))
+ && (norun || regtry(prog, s)) )
+ goto got_it;
+ s++;
+ }
+ else
+ while (s <= e) {
+ if ( (*(U8*)s == c1 || *(U8*)s == c2)
+ && (ln == 1 || !(OP(c) == EXACTF
+ ? ibcmp(s, m, ln)
+ : ibcmp_locale(s, m, ln)))
+ && (norun || regtry(prog, s)) )
+ goto got_it;
+ s++;
+ }
+ }
break;
case BOUNDL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
case BOUND:
- tmp = (s != startpos) ? UCHARAT(s - 1) : '\n';
- tmp = ((OP(c) == BOUND ? isALNUM(tmp) : isALNUM_LC(tmp)) != 0);
- while (s < strend) {
- if (tmp == !(OP(c) == BOUND ? isALNUM(*s) : isALNUM_LC(*s))) {
- tmp = !tmp;
- if ((norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ if (s == PL_bostr)
+ tmp = '\n';
+ else {
+ U8 *r = reghop3((U8*)s, -1, (U8*)PL_bostr);
+
+ tmp = utf8n_to_uvchr(r, UTF8SKIP(r), 0, 0);
+ }
+ tmp = ((OP(c) == BOUND ?
+ isALNUM_uni(tmp) : isALNUM_LC_uvchr(UNI_TO_NATIVE(tmp))) != 0);
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ while (s < strend) {
+ if (tmp == !(OP(c) == BOUND ?
+ swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8) :
+ isALNUM_LC_utf8((U8*)s)))
+ {
+ tmp = !tmp;
+ if ((norun || regtry(prog, s)))
+ goto got_it;
+ }
+ s += UTF8SKIP(s);
}
- s++;
}
- if ((!prog->minlen && tmp) && (norun || regtry(prog, s)))
- goto got_it;
- break;
- case BOUNDLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case BOUNDUTF8:
- if (s == startpos)
- tmp = '\n';
else {
- U8 *r = reghop((U8*)s, -1);
-
- tmp = (I32)utf8_to_uv(r, s - (char*)r, 0, 0);
- }
- tmp = ((OP(c) == BOUNDUTF8 ?
- isALNUM_uni(tmp) : isALNUM_LC_uni(tmp)) != 0);
- while (s < strend) {
- if (tmp == !(OP(c) == BOUNDUTF8 ?
- swash_fetch(PL_utf8_alnum, (U8*)s) :
- isALNUM_LC_utf8((U8*)s)))
- {
- tmp = !tmp;
- if ((norun || regtry(prog, s)))
- goto got_it;
+ tmp = (s != PL_bostr) ? UCHARAT(s - 1) : '\n';
+ tmp = ((OP(c) == BOUND ? isALNUM(tmp) : isALNUM_LC(tmp)) != 0);
+ while (s < strend) {
+ if (tmp ==
+ !(OP(c) == BOUND ? isALNUM(*s) : isALNUM_LC(*s))) {
+ tmp = !tmp;
+ if ((norun || regtry(prog, s)))
+ goto got_it;
+ }
+ s++;
}
- s += UTF8SKIP(s);
}
if ((!prog->minlen && tmp) && (norun || regtry(prog, s)))
goto got_it;
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
case NBOUND:
- tmp = (s != startpos) ? UCHARAT(s - 1) : '\n';
- tmp = ((OP(c) == NBOUND ? isALNUM(tmp) : isALNUM_LC(tmp)) != 0);
- while (s < strend) {
- if (tmp == !(OP(c) == NBOUND ? isALNUM(*s) : isALNUM_LC(*s)))
- tmp = !tmp;
- else if ((norun || regtry(prog, s)))
- goto got_it;
- s++;
+ if (do_utf8) {
+ if (s == PL_bostr)
+ tmp = '\n';
+ else {
+ U8 *r = reghop3((U8*)s, -1, (U8*)PL_bostr);
+
+ tmp = utf8n_to_uvchr(r, UTF8SKIP(r), 0, 0);
+ }
+ tmp = ((OP(c) == NBOUND ?
+ isALNUM_uni(tmp) : isALNUM_LC_uvchr(UNI_TO_NATIVE(tmp))) != 0);
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ while (s < strend) {
+ if (tmp == !(OP(c) == NBOUND ?
+ swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8) :
+ isALNUM_LC_utf8((U8*)s)))
+ tmp = !tmp;
+ else if ((norun || regtry(prog, s)))
+ goto got_it;
+ s += UTF8SKIP(s);
+ }
}
- if ((!prog->minlen && !tmp) && (norun || regtry(prog, s)))
- goto got_it;
- break;
- case NBOUNDLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NBOUNDUTF8:
- if (s == startpos)
- tmp = '\n';
else {
- U8 *r = reghop((U8*)s, -1);
-
- tmp = (I32)utf8_to_uv(r, s - (char*)r, 0, 0);
- }
- tmp = ((OP(c) == NBOUNDUTF8 ?
- isALNUM_uni(tmp) : isALNUM_LC_uni(tmp)) != 0);
- while (s < strend) {
- if (tmp == !(OP(c) == NBOUNDUTF8 ?
- swash_fetch(PL_utf8_alnum, (U8*)s) :
- isALNUM_LC_utf8((U8*)s)))
- tmp = !tmp;
- else if ((norun || regtry(prog, s)))
- goto got_it;
- s += UTF8SKIP(s);
+ tmp = (s != PL_bostr) ? UCHARAT(s - 1) : '\n';
+ tmp = ((OP(c) == NBOUND ?
+ isALNUM(tmp) : isALNUM_LC(tmp)) != 0);
+ while (s < strend) {
+ if (tmp ==
+ !(OP(c) == NBOUND ? isALNUM(*s) : isALNUM_LC(*s)))
+ tmp = !tmp;
+ else if ((norun || regtry(prog, s)))
+ goto got_it;
+ s++;
+ }
}
if ((!prog->minlen && !tmp) && (norun || regtry(prog, s)))
goto got_it;
break;
case ALNUM:
- while (s < strend) {
- if (isALNUM(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ while (s < strend) {
+ if (swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case ALNUMUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_alnum, (U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (isALNUM(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case ALNUML:
PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isALNUM_LC(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ while (s < strend) {
+ if (isALNUM_LC_utf8((U8*)s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case ALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isALNUM_LC_utf8((U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (isALNUM_LC(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case NALNUM:
- while (s < strend) {
- if (!isALNUM(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ while (s < strend) {
+ if (!swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case NALNUMUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_alnum, (U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (!isALNUM(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case NALNUML:
PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isALNUM_LC(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ while (s < strend) {
+ if (!isALNUM_LC_utf8((U8*)s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case NALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isALNUM_LC_utf8((U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (!isALNUM_LC(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case SPACE:
- while (s < strend) {
- if (isSPACE(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(space," ");
+ while (s < strend) {
+ if (*s == ' ' || swash_fetch(PL_utf8_space,(U8*)s, do_utf8)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case SPACEUTF8:
- while (s < strend) {
- if (*s == ' ' || swash_fetch(PL_utf8_space,(U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (isSPACE(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case SPACEL:
PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isSPACE_LC(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ while (s < strend) {
+ if (*s == ' ' || isSPACE_LC_utf8((U8*)s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case SPACELUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (*s == ' ' || isSPACE_LC_utf8((U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (isSPACE_LC(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case NSPACE:
- while (s < strend) {
- if (!isSPACE(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(space," ");
+ while (s < strend) {
+ if (!(*s == ' ' || swash_fetch(PL_utf8_space,(U8*)s, do_utf8))) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case NSPACEUTF8:
- while (s < strend) {
- if (!(*s == ' ' || swash_fetch(PL_utf8_space,(U8*)s))) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (!isSPACE(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case NSPACEL:
PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isSPACE_LC(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ while (s < strend) {
+ if (!(*s == ' ' || isSPACE_LC_utf8((U8*)s))) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case NSPACELUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!(*s == ' ' || isSPACE_LC_utf8((U8*)s))) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (!isSPACE_LC(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case DIGIT:
- while (s < strend) {
- if (isDIGIT(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(digit,"0");
+ while (s < strend) {
+ if (swash_fetch(PL_utf8_digit,(U8*)s, do_utf8)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case DIGITUTF8:
- while (s < strend) {
- if (swash_fetch(PL_utf8_digit,(U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (isDIGIT(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case DIGITL:
PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isDIGIT_LC(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ while (s < strend) {
+ if (isDIGIT_LC_utf8((U8*)s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case DIGITLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (isDIGIT_LC_utf8((U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (isDIGIT_LC(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case NDIGIT:
- while (s < strend) {
- if (!isDIGIT(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(digit,"0");
+ while (s < strend) {
+ if (!swash_fetch(PL_utf8_digit,(U8*)s, do_utf8)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case NDIGITUTF8:
- while (s < strend) {
- if (!swash_fetch(PL_utf8_digit,(U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (!isDIGIT(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
case NDIGITL:
PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isDIGIT_LC(*s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ if (do_utf8) {
+ while (s < strend) {
+ if (!isDIGIT_LC_utf8((U8*)s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s += UTF8SKIP(s);
}
- else
- tmp = 1;
- s++;
}
- break;
- case NDIGITLUTF8:
- PL_reg_flags |= RF_tainted;
- while (s < strend) {
- if (!isDIGIT_LC_utf8((U8*)s)) {
- if (tmp && (norun || regtry(prog, s)))
- goto got_it;
+ else {
+ while (s < strend) {
+ if (!isDIGIT_LC(*s)) {
+ if (tmp && (norun || regtry(prog, s)))
+ goto got_it;
+ else
+ tmp = doevery;
+ }
else
- tmp = doevery;
+ tmp = 1;
+ s++;
}
- else
- tmp = 1;
- s += UTF8SKIP(s);
}
break;
default:
/* data: May be used for some additional optimizations. */
/* nosave: For optimizations. */
{
- dTHR;
register char *s;
register regnode *c;
register char *startpos = stringarg;
I32 scream_pos = -1; /* Internal iterator of scream. */
char *scream_olds;
SV* oreplsv = GvSV(PL_replgv);
+ bool do_utf8 = DO_UTF8(sv);
+#ifdef DEBUGGING
+ SV *dsv0 = PERL_DEBUG_PAD_ZERO(0);
+ SV *dsv1 = PERL_DEBUG_PAD_ZERO(1);
+#endif
+ RX_MATCH_UTF8_set(prog,do_utf8);
PL_regcc = 0;
cache_re(prog);
#ifdef DEBUGGING
- PL_regnarrate = PL_debug & 512;
+ PL_regnarrate = DEBUG_r_TEST;
#endif
/* Be paranoid... */
}
minlen = prog->minlen;
- if (strend - startpos < minlen) goto phooey;
-
- if (startpos == strbeg) /* is ^ valid at stringarg? */
- PL_regprev = '\n';
- else {
- PL_regprev = (U32)stringarg[-1];
- if (!PL_multiline && PL_regprev == '\n')
- PL_regprev = '\0'; /* force ^ to NOT match */
+ if (strend - startpos < minlen) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log,
+ "String too short [regexec_flags]...\n"));
+ goto phooey;
}
/* Check validity of program. */
PL_reg_ganch = startpos;
else if (sv && SvTYPE(sv) >= SVt_PVMG
&& SvMAGIC(sv)
- && (mg = mg_find(sv, 'g')) && mg->mg_len >= 0) {
+ && (mg = mg_find(sv, PERL_MAGIC_regex_global))
+ && mg->mg_len >= 0) {
PL_reg_ganch = strbeg + mg->mg_len; /* Defined pos() */
if (prog->reganch & ROPT_ANCH_GPOS) {
- if (s > PL_reg_ganch)
+ if (s > PL_reg_ganch)
goto phooey;
s = PL_reg_ganch;
}
PL_reg_ganch = strbeg;
}
- if (!(flags & REXEC_CHECKED) && prog->check_substr != Nullsv) {
+ if (!(flags & REXEC_CHECKED) && (prog->check_substr != Nullsv || prog->check_utf8 != Nullsv)) {
re_scream_pos_data d;
d.scream_olds = &scream_olds;
d.scream_pos = &scream_pos;
s = re_intuit_start(prog, sv, s, strend, flags, &d);
- if (!s)
+ if (!s) {
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "Not present...\n"));
goto phooey; /* not present */
+ }
}
- DEBUG_r( if (!PL_colorset) reginitcolors() );
- DEBUG_r(PerlIO_printf(Perl_debug_log,
- "%sMatching REx%s `%s%.60s%s%s' against `%s%.*s%s%s'\n",
- PL_colors[4],PL_colors[5],PL_colors[0],
- prog->precomp,
- PL_colors[1],
- (strlen(prog->precomp) > 60 ? "..." : ""),
- PL_colors[0],
- (int)(strend - startpos > 60 ? 60 : strend - startpos),
- startpos, PL_colors[1],
- (strend - startpos > 60 ? "..." : ""))
- );
+ DEBUG_r({
+ char *s0 = UTF ?
+ pv_uni_display(dsv0, (U8*)prog->precomp, prog->prelen, 60,
+ UNI_DISPLAY_REGEX) :
+ prog->precomp;
+ int len0 = UTF ? SvCUR(dsv0) : prog->prelen;
+ char *s1 = do_utf8 ? sv_uni_display(dsv1, sv, 60,
+ UNI_DISPLAY_REGEX) : startpos;
+ int len1 = do_utf8 ? SvCUR(dsv1) : strend - startpos;
+ if (!PL_colorset)
+ reginitcolors();
+ PerlIO_printf(Perl_debug_log,
+ "%sMatching REx%s `%s%*.*s%s%s' against `%s%.*s%s%s'\n",
+ PL_colors[4],PL_colors[5],PL_colors[0],
+ len0, len0, s0,
+ PL_colors[1],
+ len0 > 60 ? "..." : "",
+ PL_colors[0],
+ (int)(len1 > 60 ? 60 : len1),
+ s1, PL_colors[1],
+ (len1 > 60 ? "..." : "")
+ );
+ });
/* Simplest case: anchored match need be tried only once. */
/* [unless only anchor is BOL and multiline is set] */
if (minlen)
dontbother = minlen - 1;
- end = HOPc(strend, -dontbother) - 1;
+ end = HOP3c(strend, -dontbother, strbeg) - 1;
/* for multiline we only have to try after newlines */
- if (prog->check_substr) {
+ if (prog->check_substr || prog->check_utf8) {
if (s == startpos)
goto after_try;
while (1) {
}
/* Messy cases: unanchored match. */
- if (prog->anchored_substr && prog->reganch & ROPT_SKIP) {
+ if ((prog->anchored_substr || prog->anchored_utf8) && prog->reganch & ROPT_SKIP) {
/* we have /x+whatever/ */
/* it must be a one character string (XXXX Except UTF?) */
- char ch = SvPVX(prog->anchored_substr)[0];
+ char ch;
#ifdef DEBUGGING
int did_match = 0;
#endif
+ if (!(do_utf8 ? prog->anchored_utf8 : prog->anchored_substr))
+ do_utf8 ? to_utf8_substr(prog) : to_byte_substr(prog);
+ ch = SvPVX(do_utf8 ? prog->anchored_utf8 : prog->anchored_substr)[0];
- if (UTF) {
+ if (do_utf8) {
while (s < strend) {
if (*s == ch) {
DEBUG_r( did_match = 1 );
s++;
}
}
- DEBUG_r(did_match ||
+ DEBUG_r(if (!did_match)
PerlIO_printf(Perl_debug_log,
- "Did not find anchored character...\n"));
+ "Did not find anchored character...\n")
+ );
}
/*SUPPRESS 560*/
else if (prog->anchored_substr != Nullsv
- || (prog->float_substr != Nullsv
- && prog->float_max_offset < strend - s)) {
- SV *must = prog->anchored_substr
- ? prog->anchored_substr : prog->float_substr;
- I32 back_max =
- prog->anchored_substr ? prog->anchored_offset : prog->float_max_offset;
- I32 back_min =
- prog->anchored_substr ? prog->anchored_offset : prog->float_min_offset;
- char *last = HOPc(strend, /* Cannot start after this */
- -(I32)(CHR_SVLEN(must)
- - (SvTAIL(must) != 0) + back_min));
+ || prog->anchored_utf8 != Nullsv
+ || ((prog->float_substr != Nullsv || prog->float_utf8 != Nullsv)
+ && prog->float_max_offset < strend - s)) {
+ SV *must;
+ I32 back_max;
+ I32 back_min;
+ char *last;
char *last1; /* Last position checked before */
#ifdef DEBUGGING
int did_match = 0;
#endif
+ if (prog->anchored_substr || prog->anchored_utf8) {
+ if (!(do_utf8 ? prog->anchored_utf8 : prog->anchored_substr))
+ do_utf8 ? to_utf8_substr(prog) : to_byte_substr(prog);
+ must = do_utf8 ? prog->anchored_utf8 : prog->anchored_substr;
+ back_max = back_min = prog->anchored_offset;
+ } else {
+ if (!(do_utf8 ? prog->float_utf8 : prog->float_substr))
+ do_utf8 ? to_utf8_substr(prog) : to_byte_substr(prog);
+ must = do_utf8 ? prog->float_utf8 : prog->float_substr;
+ back_max = prog->float_max_offset;
+ back_min = prog->float_min_offset;
+ }
+ if (must == &PL_sv_undef)
+ /* could not downgrade utf8 check substring, so must fail */
+ goto phooey;
+
+ last = HOP3c(strend, /* Cannot start after this */
+ -(I32)(CHR_SVLEN(must)
+ - (SvTAIL(must) != 0) + back_min), strbeg);
if (s > PL_bostr)
last1 = HOPc(s, -1);
dontbother = end_shift;
strend = HOPc(strend, -dontbother);
while ( (s <= last) &&
- ((flags & REXEC_SCREAM)
- ? (s = screaminstr(sv, must, HOPc(s, back_min) - strbeg,
+ ((flags & REXEC_SCREAM)
+ ? (s = screaminstr(sv, must, HOP3c(s, back_min, strend) - strbeg,
end_shift, &scream_pos, 0))
- : (s = fbm_instr((unsigned char*)HOP(s, back_min),
- (unsigned char*)strend, must,
+ : (s = fbm_instr((unsigned char*)HOP3(s, back_min, strend),
+ (unsigned char*)strend, must,
PL_multiline ? FBMrf_MULTILINE : 0))) ) {
+ /* we may be pointing at the wrong string */
+ if ((flags & REXEC_SCREAM) && RX_MATCH_COPIED(prog))
+ s = strbeg + (s - SvPVX(sv));
DEBUG_r( did_match = 1 );
if (HOPc(s, -back_max) > last1) {
last1 = HOPc(s, -back_min);
last1 = HOPc(s, -back_min);
s = t;
}
- if (UTF) {
+ if (do_utf8) {
while (s <= last1) {
if (regtry(prog, s))
goto got_it;
}
}
}
- DEBUG_r(did_match ||
- PerlIO_printf(Perl_debug_log, "Did not find %s substr `%s%.*s%s'%s...\n",
- ((must == prog->anchored_substr)
+ DEBUG_r(if (!did_match)
+ PerlIO_printf(Perl_debug_log,
+ "Did not find %s substr `%s%.*s%s'%s...\n",
+ ((must == prog->anchored_substr || must == prog->anchored_utf8)
? "anchored" : "floating"),
PL_colors[0],
(int)(SvCUR(must) - (SvTAIL(must)!=0)),
SvPVX(must),
- PL_colors[1], (SvTAIL(must) ? "$" : "")));
+ PL_colors[1], (SvTAIL(must) ? "$" : ""))
+ );
goto phooey;
}
else if ((c = prog->regstclass)) {
- if (minlen && PL_regkind[(U8)OP(prog->regstclass)] != EXACT)
+ if (minlen) {
+ I32 op = (U8)OP(prog->regstclass);
/* don't bother with what can't match */
- strend = HOPc(strend, -(minlen - 1));
+ if (PL_regkind[op] != EXACT && op != CANY)
+ strend = HOPc(strend, -(minlen - 1));
+ }
+ DEBUG_r({
+ SV *prop = sv_newmortal();
+ char *s0;
+ char *s1;
+ int len0;
+ int len1;
+
+ regprop(prop, c);
+ s0 = UTF ?
+ pv_uni_display(dsv0, (U8*)SvPVX(prop), SvCUR(prop), 60,
+ UNI_DISPLAY_REGEX) :
+ SvPVX(prop);
+ len0 = UTF ? SvCUR(dsv0) : SvCUR(prop);
+ s1 = UTF ?
+ sv_uni_display(dsv1, sv, 60, UNI_DISPLAY_REGEX) : s;
+ len1 = UTF ? SvCUR(dsv1) : strend - s;
+ PerlIO_printf(Perl_debug_log,
+ "Matching stclass `%*.*s' against `%*.*s'\n",
+ len0, len0, s0,
+ len1, len1, s1);
+ });
if (find_byclass(prog, c, s, strend, startpos, 0))
goto got_it;
DEBUG_r(PerlIO_printf(Perl_debug_log, "Contradicts stclass...\n"));
}
else {
dontbother = 0;
- if (prog->float_substr != Nullsv) { /* Trim the end. */
+ if (prog->float_substr != Nullsv || prog->float_utf8 != Nullsv) {
+ /* Trim the end. */
char *last;
+ SV* float_real;
+
+ if (!(do_utf8 ? prog->float_utf8 : prog->float_substr))
+ do_utf8 ? to_utf8_substr(prog) : to_byte_substr(prog);
+ float_real = do_utf8 ? prog->float_utf8 : prog->float_substr;
if (flags & REXEC_SCREAM) {
- last = screaminstr(sv, prog->float_substr, s - strbeg,
+ last = screaminstr(sv, float_real, s - strbeg,
end_shift, &scream_pos, 1); /* last one */
if (!last)
- last = scream_olds; /* Only one occurence. */
+ last = scream_olds; /* Only one occurrence. */
+ /* we may be pointing at the wrong string */
+ else if (RX_MATCH_COPIED(prog))
+ s = strbeg + (s - SvPVX(sv));
}
else {
STRLEN len;
- char *little = SvPV(prog->float_substr, len);
+ char *little = SvPV(float_real, len);
- if (SvTAIL(prog->float_substr)) {
+ if (SvTAIL(float_real)) {
if (memEQ(strend - len + 1, little, len - 1))
last = strend - len + 1;
else if (!PL_multiline)
- last = memEQ(strend - len, little, len)
+ last = memEQ(strend - len, little, len)
? strend - len : Nullch;
else
goto find_last;
} else {
find_last:
- if (len)
+ if (len)
last = rninstr(s, strend, little, little + len);
else
last = strend; /* matching `$' */
dontbother = minlen - 1;
strend -= dontbother; /* this one's always in bytes! */
/* We don't know much -- general case. */
- if (UTF) {
+ if (do_utf8) {
for (;;) {
if (regtry(prog, s))
goto got_it;
sv_setsv(oreplsv, GvSV(PL_replgv));/* So that when GvSV(replgv) is
restored, the value remains
the same. */
- restore_pos(aTHXo_ 0);
+ restore_pos(aTHX_ 0);
}
/* make sure $`, $&, $', and $digit will work later */
if ( !(flags & REXEC_NOT_FIRST) ) {
- if (RX_MATCH_COPIED(prog)) {
- Safefree(prog->subbeg);
- RX_MATCH_COPIED_off(prog);
- }
+ RX_MATCH_COPY_FREE(prog);
if (flags & REXEC_COPY_STR) {
I32 i = PL_regeol - startpos + (stringarg - strbeg);
-
- s = savepvn(strbeg, i);
- prog->subbeg = s;
+#ifdef PERL_COPY_ON_WRITE
+ if ((SvIsCOW(sv)
+ || (SvFLAGS(sv) & CAN_COW_MASK) == CAN_COW_FLAGS)) {
+ if (DEBUG_C_TEST) {
+ PerlIO_printf(Perl_debug_log,
+ "Copy on write: regexp capture, type %d\n",
+ (int) SvTYPE(sv));
+ }
+ prog->saved_copy = sv_setsv_cow(prog->saved_copy, sv);
+ prog->subbeg = SvPVX(prog->saved_copy);
+ assert (SvPOKp(prog->saved_copy));
+ } else
+#endif
+ {
+ RX_MATCH_COPIED_on(prog);
+ s = savepvn(strbeg, i);
+ prog->subbeg = s;
+ }
prog->sublen = i;
- RX_MATCH_COPIED_on(prog);
}
else {
prog->subbeg = strbeg;
prog->sublen = PL_regeol - strbeg; /* strend may have been modified */
}
}
-
+
return 1;
phooey:
DEBUG_r(PerlIO_printf(Perl_debug_log, "%sMatch failed%s\n",
PL_colors[4],PL_colors[5]));
if (PL_reg_eval_set)
- restore_pos(aTHXo_ 0);
+ restore_pos(aTHX_ 0);
return 0;
}
STATIC I32 /* 0 failure, 1 success */
S_regtry(pTHX_ regexp *prog, char *startpos)
{
- dTHR;
register I32 i;
register I32 *sp;
register I32 *ep;
if (PL_reg_sv) {
/* Make $_ available to executed code. */
if (PL_reg_sv != DEFSV) {
- /* SAVE_DEFSV does *not* suffice here for USE_THREADS */
- SAVESPTR(DEFSV);
+ SAVE_DEFSV;
DEFSV = PL_reg_sv;
}
- if (!(SvTYPE(PL_reg_sv) >= SVt_PVMG && SvMAGIC(PL_reg_sv)
- && (mg = mg_find(PL_reg_sv, 'g')))) {
+ if (!(SvTYPE(PL_reg_sv) >= SVt_PVMG && SvMAGIC(PL_reg_sv)
+ && (mg = mg_find(PL_reg_sv, PERL_MAGIC_regex_global)))) {
/* prepare for quick setting of pos */
- sv_magic(PL_reg_sv, (SV*)0, 'g', Nullch, 0);
- mg = mg_find(PL_reg_sv, 'g');
+ sv_magic(PL_reg_sv, (SV*)0,
+ PERL_MAGIC_regex_global, Nullch, 0);
+ mg = mg_find(PL_reg_sv, PERL_MAGIC_regex_global);
mg->mg_len = -1;
}
PL_reg_magic = mg;
PL_reg_oldpos = mg->mg_len;
SAVEDESTRUCTOR_X(restore_pos, 0);
}
- if (!PL_reg_curpm)
+ if (!PL_reg_curpm) {
Newz(22,PL_reg_curpm, 1, PMOP);
- PL_reg_curpm->op_pmregexp = prog;
+#ifdef USE_ITHREADS
+ {
+ SV* repointer = newSViv(0);
+ /* so we know which PL_regex_padav element is PL_reg_curpm */
+ SvFLAGS(repointer) |= SVf_BREAK;
+ av_push(PL_regex_padav,repointer);
+ PL_reg_curpm->op_pmoffset = av_len(PL_regex_padav);
+ PL_regex_pad = AvARRAY(PL_regex_padav);
+ }
+#endif
+ }
+ PM_SETRE(PL_reg_curpm, prog);
PL_reg_oldcurpm = PL_curpm;
PL_curpm = PL_reg_curpm;
if (RX_MATCH_COPIED(prog)) {
$` inside (?{}) could fail... */
PL_reg_oldsaved = prog->subbeg;
PL_reg_oldsavedlen = prog->sublen;
+#ifdef PERL_COPY_ON_WRITE
+ PL_nrs = prog->saved_copy;
+#endif
RX_MATCH_COPIED_off(prog);
}
else
PL_regstartp = prog->startp;
PL_regendp = prog->endp;
PL_reglastparen = &prog->lastparen;
+ PL_reglastcloseparen = &prog->lastcloseparen;
prog->lastparen = 0;
+ prog->lastcloseparen = 0;
PL_regsize = 0;
DEBUG_r(PL_reg_starttry = startpos);
if (PL_reg_start_tmpl <= prog->nparens) {
/* XXXX What this code is doing here?!!! There should be no need
to do this again and again, PL_reglastparen should take care of
this! --ilya*/
- /* Tests pat.t#187 and split.t#{13,14} seem to depend on this. --jhi */
+
+ /* Tests pat.t#187 and split.t#{13,14} seem to depend on this code.
+ * Actually, the code in regcppop() (which Ilya may be meaning by
+ * PL_reglastparen), is not needed at all by the test suite
+ * (op/regexp, op/pat, op/split), but that code is needed, oddly
+ * enough, for building DynaLoader, or otherwise this
+ * "Error: '*' not in typemap in DynaLoader.xs, line 164"
+ * will happen. Meanwhile, this code *is* needed for the
+ * above-mentioned test suite tests to succeed. The common theme
+ * on those tests seems to be returning null fields from matches.
+ * --jhi */
+#if 1
sp = prog->startp;
ep = prog->endp;
if (prog->nparens) {
- for (i = prog->nparens; i >= 1; i--) {
+ for (i = prog->nparens; i > (I32)*PL_reglastparen; i--) {
*++sp = -1;
*++ep = -1;
}
}
+#endif
REGCP_SET(lastcp);
if (regmatch(prog->program + 1)) {
prog->endp[0] = PL_reginput - PL_bostr;
re_unwind_branch_t branch;
} re_unwind_t;
+#define sayYES goto yes
+#define sayNO goto no
+#define sayNO_ANYOF goto no_anyof
+#define sayYES_FINAL goto yes_final
+#define sayYES_LOUD goto yes_loud
+#define sayNO_FINAL goto no_final
+#define sayNO_SILENT goto do_no
+#define saySAME(x) if (x) goto yes; else goto no
+
+#define REPORT_CODE_OFF 24
+
/*
- regmatch - main matching routine
*
STATIC I32 /* 0 failure, 1 success */
S_regmatch(pTHX_ regnode *prog)
{
- dTHR;
register regnode *scan; /* Current node. */
regnode *next; /* Next node. */
regnode *inner; /* Next node in internal branch. */
register I32 nextchr; /* renamed nextchr - nextchar colides with
function of same name */
register I32 n; /* no or next */
- register I32 ln; /* len or last */
- register char *s; /* operand or save */
+ register I32 ln = 0; /* len or last */
+ register char *s = Nullch; /* operand or save */
register char *locinput = PL_reginput;
- register I32 c1, c2, paren; /* case fold search, parenth */
+ register I32 c1 = 0, c2 = 0, paren; /* case fold search, parenth */
int minmod = 0, sw = 0, logical = 0;
I32 unwind = 0;
+#if 0
I32 firstcp = PL_savestack_ix;
+#endif
+ register bool do_utf8 = PL_reg_match_utf8;
+#ifdef DEBUGGING
+ SV *dsv0 = PERL_DEBUG_PAD_ZERO(0);
+ SV *dsv1 = PERL_DEBUG_PAD_ZERO(1);
+ SV *dsv2 = PERL_DEBUG_PAD_ZERO(2);
+#endif
#ifdef DEBUGGING
PL_regindent++;
nextchr = UCHARAT(locinput);
scan = prog;
while (scan != NULL) {
-#define sayNO_L (logical ? (logical = 0, sw = 0, goto cont) : sayNO)
-#if 1
-# define sayYES goto yes
-# define sayNO goto no
-# define sayYES_FINAL goto yes_final
-# define sayYES_LOUD goto yes_loud
-# define sayNO_FINAL goto no_final
-# define sayNO_SILENT goto do_no
-# define saySAME(x) if (x) goto yes; else goto no
-# define REPORT_CODE_OFF 24
-#else
-# define sayYES return 1
-# define sayNO return 0
-# define sayYES_FINAL return 1
-# define sayYES_LOUD return 1
-# define sayNO_FINAL return 0
-# define sayNO_SILENT return 0
-# define saySAME(x) return x
-#endif
- DEBUG_r( {
+
+ DEBUG_r( {
SV *prop = sv_newmortal();
int docolor = *PL_colors[0];
int taill = (docolor ? 10 : 7); /* 3 chars for "> <" */
- int l = (PL_regeol - locinput > taill ? taill : PL_regeol - locinput);
+ int l = (PL_regeol - locinput) > taill ? taill : (PL_regeol - locinput);
/* The part of the string before starttry has one color
(pref0_len chars), between starttry and current
position another one (pref_len - pref0_len chars),
after the current position the third one.
We assume that pref0_len <= pref_len, otherwise we
decrease pref0_len. */
- int pref_len = (locinput - PL_bostr > (5 + taill) - l
- ? (5 + taill) - l : locinput - PL_bostr);
- int pref0_len = pref_len - (locinput - PL_reg_starttry);
+ int pref_len = (locinput - PL_bostr) > (5 + taill) - l
+ ? (5 + taill) - l : locinput - PL_bostr;
+ int pref0_len;
+ while (do_utf8 && UTF8_IS_CONTINUATION(*(U8*)(locinput - pref_len)))
+ pref_len++;
+ pref0_len = pref_len - (locinput - PL_reg_starttry);
if (l + pref_len < (5 + taill) && l < PL_regeol - locinput)
- l = ( PL_regeol - locinput > (5 + taill) - pref_len
+ l = ( PL_regeol - locinput > (5 + taill) - pref_len
? (5 + taill) - pref_len : PL_regeol - locinput);
+ while (do_utf8 && UTF8_IS_CONTINUATION(*(U8*)(locinput + l)))
+ l--;
if (pref0_len < 0)
pref0_len = 0;
if (pref0_len > pref_len)
pref0_len = pref_len;
regprop(prop, scan);
- PerlIO_printf(Perl_debug_log,
- "%4"IVdf" <%s%.*s%s%s%.*s%s%s%s%.*s%s>%*s|%3"IVdf":%*s%s\n",
- (IV)(locinput - PL_bostr),
- PL_colors[4], pref0_len,
- locinput - pref_len, PL_colors[5],
- PL_colors[2], pref_len - pref0_len,
- locinput - pref_len + pref0_len, PL_colors[3],
- (docolor ? "" : "> <"),
- PL_colors[0], l, locinput, PL_colors[1],
- 15 - l - pref_len + 1,
- "",
- (IV)(scan - PL_regprogram), PL_regindent*2, "",
- SvPVX(prop));
- } );
+ {
+ char *s0 =
+ do_utf8 && OP(scan) != CANY ?
+ pv_uni_display(dsv0, (U8*)(locinput - pref_len),
+ pref0_len, 60, UNI_DISPLAY_REGEX) :
+ locinput - pref_len;
+ int len0 = do_utf8 ? strlen(s0) : pref0_len;
+ char *s1 = do_utf8 && OP(scan) != CANY ?
+ pv_uni_display(dsv1, (U8*)(locinput - pref_len + pref0_len),
+ pref_len - pref0_len, 60, UNI_DISPLAY_REGEX) :
+ locinput - pref_len + pref0_len;
+ int len1 = do_utf8 ? strlen(s1) : pref_len - pref0_len;
+ char *s2 = do_utf8 && OP(scan) != CANY ?
+ pv_uni_display(dsv2, (U8*)locinput,
+ PL_regeol - locinput, 60, UNI_DISPLAY_REGEX) :
+ locinput;
+ int len2 = do_utf8 ? strlen(s2) : l;
+ PerlIO_printf(Perl_debug_log,
+ "%4"IVdf" <%s%.*s%s%s%.*s%s%s%s%.*s%s>%*s|%3"IVdf":%*s%s\n",
+ (IV)(locinput - PL_bostr),
+ PL_colors[4],
+ len0, s0,
+ PL_colors[5],
+ PL_colors[2],
+ len1, s1,
+ PL_colors[3],
+ (docolor ? "" : "> <"),
+ PL_colors[0],
+ len2, s2,
+ PL_colors[1],
+ 15 - l - pref_len + 1,
+ "",
+ (IV)(scan - PL_regprogram), PL_regindent*2, "",
+ SvPVX(prop));
+ }
+ });
next = scan + NEXT_OFF(scan);
if (next == scan)
switch (OP(scan)) {
case BOL:
- if (locinput == PL_bostr
- ? PL_regprev == '\n'
- : (PL_multiline &&
- (nextchr || locinput < PL_regeol) && locinput[-1] == '\n') )
+ if (locinput == PL_bostr || (PL_multiline &&
+ (nextchr || locinput < PL_regeol) && locinput[-1] == '\n') )
{
/* regtill = regbol; */
break;
}
sayNO;
case MBOL:
- if (locinput == PL_bostr
- ? PL_regprev == '\n'
- : ((nextchr || locinput < PL_regeol) && locinput[-1] == '\n') )
+ if (locinput == PL_bostr ||
+ ((nextchr || locinput < PL_regeol) && locinput[-1] == '\n'))
{
break;
}
if (PL_regeol != locinput)
sayNO;
break;
- case SANYUTF8:
- if (nextchr & 0x80) {
- locinput += PL_utf8skip[nextchr];
- if (locinput > PL_regeol)
- sayNO;
- nextchr = UCHARAT(locinput);
- break;
- }
+ case SANY:
if (!nextchr && locinput >= PL_regeol)
sayNO;
- nextchr = UCHARAT(++locinput);
+ if (do_utf8) {
+ locinput += PL_utf8skip[nextchr];
+ if (locinput > PL_regeol)
+ sayNO;
+ nextchr = UCHARAT(locinput);
+ }
+ else
+ nextchr = UCHARAT(++locinput);
break;
- case SANY:
+ case CANY:
if (!nextchr && locinput >= PL_regeol)
sayNO;
nextchr = UCHARAT(++locinput);
break;
- case ANYUTF8:
- if (nextchr & 0x80) {
+ case REG_ANY:
+ if ((!nextchr && locinput >= PL_regeol) || nextchr == '\n')
+ sayNO;
+ if (do_utf8) {
locinput += PL_utf8skip[nextchr];
if (locinput > PL_regeol)
sayNO;
nextchr = UCHARAT(locinput);
- break;
}
- if ((!nextchr && locinput >= PL_regeol) || nextchr == '\n')
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case REG_ANY:
- if ((!nextchr && locinput >= PL_regeol) || nextchr == '\n')
- sayNO;
- nextchr = UCHARAT(++locinput);
+ else
+ nextchr = UCHARAT(++locinput);
break;
case EXACT:
s = STRING(scan);
ln = STR_LEN(scan);
+ if (do_utf8 != UTF) {
+ /* The target and the pattern have differing utf8ness. */
+ char *l = locinput;
+ char *e = s + ln;
+ STRLEN ulen;
+
+ if (do_utf8) {
+ /* The target is utf8, the pattern is not utf8. */
+ while (s < e) {
+ if (l >= PL_regeol)
+ sayNO;
+ if (NATIVE_TO_UNI(*(U8*)s) !=
+ utf8n_to_uvuni((U8*)l, UTF8_MAXLEN, &ulen,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY))
+ sayNO;
+ l += ulen;
+ s ++;
+ }
+ }
+ else {
+ /* The target is not utf8, the pattern is utf8. */
+ while (s < e) {
+ if (l >= PL_regeol)
+ sayNO;
+ if (NATIVE_TO_UNI(*((U8*)l)) !=
+ utf8n_to_uvuni((U8*)s, UTF8_MAXLEN, &ulen,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY))
+ sayNO;
+ s += ulen;
+ l ++;
+ }
+ }
+ locinput = l;
+ nextchr = UCHARAT(locinput);
+ break;
+ }
+ /* The target and the pattern have the same utf8ness. */
/* Inline the first character, for speed. */
if (UCHARAT(s) != nextchr)
sayNO;
s = STRING(scan);
ln = STR_LEN(scan);
- if (UTF) {
+ if (do_utf8 || UTF) {
+ /* Either target or the pattern are utf8. */
char *l = locinput;
- char *e = s + ln;
- c1 = OP(scan) == EXACTF;
- while (s < e) {
- if (l >= PL_regeol)
- sayNO;
- if (utf8_to_uv((U8*)s, e - s, 0, 0) !=
- (c1 ?
- toLOWER_utf8((U8*)l) :
- toLOWER_LC_utf8((U8*)l)))
- {
- sayNO;
- }
- s += UTF8SKIP(s);
- l += UTF8SKIP(l);
+ char *e = PL_regeol;
+
+ if (ibcmp_utf8(s, 0, ln, (bool)UTF,
+ l, &e, 0, do_utf8)) {
+ /* One more case for the sharp s:
+ * pack("U0U*", 0xDF) =~ /ss/i,
+ * the 0xC3 0x9F are the UTF-8
+ * byte sequence for the U+00DF. */
+ if (!(do_utf8 &&
+ toLOWER(s[0]) == 's' &&
+ ln >= 2 &&
+ toLOWER(s[1]) == 's' &&
+ (U8)l[0] == 0xC3 &&
+ e - l >= 2 &&
+ (U8)l[1] == 0x9F))
+ sayNO;
}
- locinput = l;
+ locinput = e;
nextchr = UCHARAT(locinput);
break;
}
+ /* Neither the target and the pattern are utf8. */
+
/* Inline the first character, for speed. */
if (UCHARAT(s) != nextchr &&
UCHARAT(s) != ((OP(scan) == EXACTF)
locinput += ln;
nextchr = UCHARAT(locinput);
break;
- case ANYOFUTF8:
- if (!REGINCLASSUTF8(scan, (U8*)locinput))
- sayNO;
- if (locinput >= PL_regeol)
- sayNO;
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
case ANYOF:
- if (nextchr < 0)
+ if (do_utf8) {
+ STRLEN inclasslen = PL_regeol - locinput;
+
+ if (!reginclass(scan, (U8*)locinput, &inclasslen, do_utf8))
+ sayNO_ANYOF;
+ if (locinput >= PL_regeol)
+ sayNO;
+ locinput += inclasslen ? inclasslen : UTF8SKIP(locinput);
nextchr = UCHARAT(locinput);
- if (!REGINCLASS(scan, nextchr))
- sayNO;
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- nextchr = UCHARAT(++locinput);
+ break;
+ }
+ else {
+ if (nextchr < 0)
+ nextchr = UCHARAT(locinput);
+ if (!REGINCLASS(scan, (U8*)locinput))
+ sayNO_ANYOF;
+ if (!nextchr && locinput >= PL_regeol)
+ sayNO;
+ nextchr = UCHARAT(++locinput);
+ break;
+ }
+ no_anyof:
+ /* If we might have the case of the German sharp s
+ * in a casefolding Unicode character class. */
+
+ if (ANYOF_FOLD_SHARP_S(scan, locinput, PL_regeol)) {
+ locinput += SHARP_S_SKIP;
+ nextchr = UCHARAT(locinput);
+ }
+ else
+ sayNO;
break;
case ALNUML:
PL_reg_flags |= RF_tainted;
case ALNUM:
if (!nextchr)
sayNO;
- if (!(OP(scan) == ALNUM
- ? isALNUM(nextchr) : isALNUM_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case ALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case ALNUMUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == ALNUMUTF8
- ? swash_fetch(PL_utf8_alnum, (U8*)locinput)
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ if (!(OP(scan) == ALNUM
+ ? swash_fetch(PL_utf8_alnum, (U8*)locinput, do_utf8)
: isALNUM_LC_utf8((U8*)locinput)))
{
sayNO;
nextchr = UCHARAT(locinput);
break;
}
- if (!(OP(scan) == ALNUMUTF8
+ if (!(OP(scan) == ALNUM
? isALNUM(nextchr) : isALNUM_LC(nextchr)))
sayNO;
nextchr = UCHARAT(++locinput);
case NALNUM:
if (!nextchr && locinput >= PL_regeol)
sayNO;
- if (OP(scan) == NALNUM
- ? isALNUM(nextchr) : isALNUM_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NALNUMUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (nextchr & 0x80) {
- if (OP(scan) == NALNUMUTF8
- ? swash_fetch(PL_utf8_alnum, (U8*)locinput)
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ if (OP(scan) == NALNUM
+ ? swash_fetch(PL_utf8_alnum, (U8*)locinput, do_utf8)
: isALNUM_LC_utf8((U8*)locinput))
{
sayNO;
nextchr = UCHARAT(locinput);
break;
}
- if (OP(scan) == NALNUMUTF8
+ if (OP(scan) == NALNUM
? isALNUM(nextchr) : isALNUM_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
case BOUND:
case NBOUND:
/* was last char in word? */
- ln = (locinput != PL_regbol) ? UCHARAT(locinput - 1) : PL_regprev;
- if (OP(scan) == BOUND || OP(scan) == NBOUND) {
- ln = isALNUM(ln);
- n = isALNUM(nextchr);
- }
- else {
- ln = isALNUM_LC(ln);
- n = isALNUM_LC(nextchr);
- }
- if (((!ln) == (!n)) == (OP(scan) == BOUND || OP(scan) == BOUNDL))
- sayNO;
- break;
- case BOUNDLUTF8:
- case NBOUNDLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case BOUNDUTF8:
- case NBOUNDUTF8:
- /* was last char in word? */
- if (locinput == PL_regbol)
- ln = PL_regprev;
- else {
- U8 *r = reghop((U8*)locinput, -1);
-
- ln = utf8_to_uv(r, s - (char*)r, 0, 0);
- }
- if (OP(scan) == BOUNDUTF8 || OP(scan) == NBOUNDUTF8) {
- ln = isALNUM_uni(ln);
- n = swash_fetch(PL_utf8_alnum, (U8*)locinput);
+ if (do_utf8) {
+ if (locinput == PL_bostr)
+ ln = '\n';
+ else {
+ U8 *r = reghop3((U8*)locinput, -1, (U8*)PL_bostr);
+
+ ln = utf8n_to_uvchr(r, UTF8SKIP(r), 0, 0);
+ }
+ if (OP(scan) == BOUND || OP(scan) == NBOUND) {
+ ln = isALNUM_uni(ln);
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ n = swash_fetch(PL_utf8_alnum, (U8*)locinput, do_utf8);
+ }
+ else {
+ ln = isALNUM_LC_uvchr(UNI_TO_NATIVE(ln));
+ n = isALNUM_LC_utf8((U8*)locinput);
+ }
}
else {
- ln = isALNUM_LC_uni(ln);
- n = isALNUM_LC_utf8((U8*)locinput);
+ ln = (locinput != PL_bostr) ?
+ UCHARAT(locinput - 1) : '\n';
+ if (OP(scan) == BOUND || OP(scan) == NBOUND) {
+ ln = isALNUM(ln);
+ n = isALNUM(nextchr);
+ }
+ else {
+ ln = isALNUM_LC(ln);
+ n = isALNUM_LC(nextchr);
+ }
}
- if (((!ln) == (!n)) == (OP(scan) == BOUNDUTF8 || OP(scan) == BOUNDLUTF8))
- sayNO;
+ if (((!ln) == (!n)) == (OP(scan) == BOUND ||
+ OP(scan) == BOUNDL))
+ sayNO;
break;
case SPACEL:
PL_reg_flags |= RF_tainted;
case SPACE:
if (!nextchr)
sayNO;
- if (!(OP(scan) == SPACE
- ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case SPACELUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case SPACEUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == SPACEUTF8
- ? swash_fetch(PL_utf8_space, (U8*)locinput)
- : isSPACE_LC_utf8((U8*)locinput)))
- {
- sayNO;
+ if (do_utf8) {
+ if (UTF8_IS_CONTINUED(nextchr)) {
+ LOAD_UTF8_CHARCLASS(space," ");
+ if (!(OP(scan) == SPACE
+ ? swash_fetch(PL_utf8_space, (U8*)locinput, do_utf8)
+ : isSPACE_LC_utf8((U8*)locinput)))
+ {
+ sayNO;
+ }
+ locinput += PL_utf8skip[nextchr];
+ nextchr = UCHARAT(locinput);
+ break;
}
- locinput += PL_utf8skip[nextchr];
- nextchr = UCHARAT(locinput);
- break;
+ if (!(OP(scan) == SPACE
+ ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
+ sayNO;
+ nextchr = UCHARAT(++locinput);
+ }
+ else {
+ if (!(OP(scan) == SPACE
+ ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
+ sayNO;
+ nextchr = UCHARAT(++locinput);
}
- if (!(OP(scan) == SPACEUTF8
- ? isSPACE(nextchr) : isSPACE_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
break;
case NSPACEL:
PL_reg_flags |= RF_tainted;
/* FALL THROUGH */
- case NSPACE:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (OP(scan) == NSPACE
- ? isSPACE(nextchr) : isSPACE_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NSPACELUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NSPACEUTF8:
+ case NSPACE:
if (!nextchr && locinput >= PL_regeol)
sayNO;
- if (nextchr & 0x80) {
- if (OP(scan) == NSPACEUTF8
- ? swash_fetch(PL_utf8_space, (U8*)locinput)
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(space," ");
+ if (OP(scan) == NSPACE
+ ? swash_fetch(PL_utf8_space, (U8*)locinput, do_utf8)
: isSPACE_LC_utf8((U8*)locinput))
{
sayNO;
nextchr = UCHARAT(locinput);
break;
}
- if (OP(scan) == NSPACEUTF8
+ if (OP(scan) == NSPACE
? isSPACE(nextchr) : isSPACE_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
case DIGIT:
if (!nextchr)
sayNO;
- if (!(OP(scan) == DIGIT
- ? isDIGIT(nextchr) : isDIGIT_LC(nextchr)))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case DIGITLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case DIGITUTF8:
- if (!nextchr)
- sayNO;
- if (nextchr & 0x80) {
- if (!(OP(scan) == DIGITUTF8
- ? swash_fetch(PL_utf8_digit, (U8*)locinput)
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(digit,"0");
+ if (!(OP(scan) == DIGIT
+ ? swash_fetch(PL_utf8_digit, (U8*)locinput, do_utf8)
: isDIGIT_LC_utf8((U8*)locinput)))
{
sayNO;
nextchr = UCHARAT(locinput);
break;
}
- if (!(OP(scan) == DIGITUTF8
+ if (!(OP(scan) == DIGIT
? isDIGIT(nextchr) : isDIGIT_LC(nextchr)))
sayNO;
nextchr = UCHARAT(++locinput);
case NDIGIT:
if (!nextchr && locinput >= PL_regeol)
sayNO;
- if (OP(scan) == NDIGIT
- ? isDIGIT(nextchr) : isDIGIT_LC(nextchr))
- sayNO;
- nextchr = UCHARAT(++locinput);
- break;
- case NDIGITLUTF8:
- PL_reg_flags |= RF_tainted;
- /* FALL THROUGH */
- case NDIGITUTF8:
- if (!nextchr && locinput >= PL_regeol)
- sayNO;
- if (nextchr & 0x80) {
- if (OP(scan) == NDIGITUTF8
- ? swash_fetch(PL_utf8_digit, (U8*)locinput)
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(digit,"0");
+ if (OP(scan) == NDIGIT
+ ? swash_fetch(PL_utf8_digit, (U8*)locinput, do_utf8)
: isDIGIT_LC_utf8((U8*)locinput))
{
sayNO;
nextchr = UCHARAT(locinput);
break;
}
- if (OP(scan) == NDIGITUTF8
+ if (OP(scan) == NDIGIT
? isDIGIT(nextchr) : isDIGIT_LC(nextchr))
sayNO;
nextchr = UCHARAT(++locinput);
break;
case CLUMP:
- if (locinput >= PL_regeol || swash_fetch(PL_utf8_mark,(U8*)locinput))
- sayNO;
- locinput += PL_utf8skip[nextchr];
- while (locinput < PL_regeol && swash_fetch(PL_utf8_mark,(U8*)locinput))
- locinput += UTF8SKIP(locinput);
- if (locinput > PL_regeol)
+ if (locinput >= PL_regeol)
sayNO;
+ if (do_utf8) {
+ LOAD_UTF8_CHARCLASS(mark,"~");
+ if (swash_fetch(PL_utf8_mark,(U8*)locinput, do_utf8))
+ sayNO;
+ locinput += PL_utf8skip[nextchr];
+ while (locinput < PL_regeol &&
+ swash_fetch(PL_utf8_mark,(U8*)locinput, do_utf8))
+ locinput += UTF8SKIP(locinput);
+ if (locinput > PL_regeol)
+ sayNO;
+ }
+ else
+ locinput++;
nextchr = UCHARAT(locinput);
break;
case REFFL:
n = ARG(scan); /* which paren pair */
ln = PL_regstartp[n];
PL_reg_leftiter = PL_reg_maxiter; /* Void cache */
- if (*PL_reglastparen < n || ln == -1)
+ if ((I32)*PL_reglastparen < n || ln == -1)
sayNO; /* Do not match unless seen CLOSEn. */
if (ln == PL_regendp[n])
break;
s = PL_bostr + ln;
- if (UTF && OP(scan) != REF) { /* REF can do byte comparison */
+ if (do_utf8 && OP(scan) != REF) { /* REF can do byte comparison */
char *l = locinput;
char *e = PL_bostr + PL_regendp[n];
/*
* have to map both upper and title case to lower case.
*/
if (OP(scan) == REFF) {
+ STRLEN ulen1, ulen2;
+ U8 tmpbuf1[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf2[UTF8_MAXLEN_UCLC+1];
while (s < e) {
if (l >= PL_regeol)
sayNO;
- if (toLOWER_utf8((U8*)s) != toLOWER_utf8((U8*)l))
- sayNO;
- s += UTF8SKIP(s);
- l += UTF8SKIP(l);
- }
- }
- else {
- while (s < e) {
- if (l >= PL_regeol)
- sayNO;
- if (toLOWER_LC_utf8((U8*)s) != toLOWER_LC_utf8((U8*)l))
+ toLOWER_utf8((U8*)s, tmpbuf1, &ulen1);
+ toLOWER_utf8((U8*)l, tmpbuf2, &ulen2);
+ if (ulen1 != ulen2 || memNE((char *)tmpbuf1, (char *)tmpbuf2, ulen1))
sayNO;
- s += UTF8SKIP(s);
- l += UTF8SKIP(l);
+ s += ulen1;
+ l += ulen2;
}
}
locinput = l;
dSP;
OP_4tree *oop = PL_op;
COP *ocurcop = PL_curcop;
- SV **ocurpad = PL_curpad;
+ PAD *old_comppad;
SV *ret;
-
+ struct regexp *oreg = PL_reg_re;
+
n = ARG(scan);
PL_op = (OP_4tree*)PL_regdata->data[n];
DEBUG_r( PerlIO_printf(Perl_debug_log, " re_eval 0x%"UVxf"\n", PTR2UV(PL_op)) );
- PL_curpad = AvARRAY((AV*)PL_regdata->data[n + 2]);
+ PAD_SAVE_LOCAL(old_comppad, (PAD*)PL_regdata->data[n + 2]);
PL_regendp[0] = PL_reg_magic->mg_len = locinput - PL_bostr;
- CALLRUNOPS(aTHX); /* Scalar context. */
- SPAGAIN;
- ret = POPs;
- PUTBACK;
-
+ {
+ SV **before = SP;
+ CALLRUNOPS(aTHX); /* Scalar context. */
+ SPAGAIN;
+ if (SP == before)
+ ret = &PL_sv_undef; /* protect against empty (?{}) blocks. */
+ else {
+ ret = POPs;
+ PUTBACK;
+ }
+ }
+
PL_op = oop;
- PL_curpad = ocurpad;
+ PAD_RESTORE_LOCAL(old_comppad);
PL_curcop = ocurcop;
if (logical) {
if (logical == 2) { /* Postponed subexpression. */
MAGIC *mg = Null(MAGIC*);
re_cc_state state;
CHECKPOINT cp, lastcp;
-
- if(SvROK(ret) || SvRMAGICAL(ret)) {
- SV *sv = SvROK(ret) ? SvRV(ret) : ret;
-
- if(SvMAGICAL(sv))
- mg = mg_find(sv, 'r');
+ int toggleutf;
+ register SV *sv;
+
+ if(SvROK(ret) && SvSMAGICAL(sv = SvRV(ret)))
+ mg = mg_find(sv, PERL_MAGIC_qr);
+ else if (SvSMAGICAL(ret)) {
+ if (SvGMAGICAL(ret))
+ sv_unmagic(ret, PERL_MAGIC_qr);
+ else
+ mg = mg_find(ret, PERL_MAGIC_qr);
}
+
if (mg) {
re = (regexp *)mg->mg_obj;
(void)ReREFCNT_inc(re);
I32 osize = PL_regsize;
I32 onpar = PL_regnpar;
- pm.op_pmflags = 0;
- pm.op_pmdynflags = (UTF||DO_UTF8(ret) ? PMdf_UTF8 : 0);
+ Zero(&pm, 1, PMOP);
+ if (DO_UTF8(ret)) pm.op_pmdynflags |= PMdf_DYN_UTF8;
re = CALLREGCOMP(aTHX_ t, t + len, &pm);
- if (!(SvFLAGS(ret)
- & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)))
- sv_magic(ret,(SV*)ReREFCNT_inc(re),'r',0,0);
+ if (!(SvFLAGS(ret)
+ & (SVs_TEMP | SVs_PADTMP | SVf_READONLY
+ | SVs_GMG)))
+ sv_magic(ret,(SV*)ReREFCNT_inc(re),
+ PERL_MAGIC_qr,0,0);
PL_regprecomp = oprecomp;
PL_regsize = osize;
PL_regnpar = onpar;
}
DEBUG_r(
- PerlIO_printf(Perl_debug_log,
+ PerlIO_printf(Perl_debug_log,
"Entering embedded `%s%.60s%s%s'\n",
PL_colors[0],
re->precomp,
state.re = PL_reg_re;
PL_regcc = 0;
-
+
cp = regcppush(0); /* Save *all* the positions. */
REGCP_SET(lastcp);
cache_re(re);
state.ss = PL_savestack_ix;
*PL_reglastparen = 0;
+ *PL_reglastcloseparen = 0;
PL_reg_call_cc = &state;
PL_reginput = locinput;
+ toggleutf = ((PL_reg_flags & RF_utf8) != 0) ^
+ ((re->reganch & ROPT_UTF8) != 0);
+ if (toggleutf) PL_reg_flags ^= RF_utf8;
/* XXXX This is too dramatic a measure... */
PL_reg_maxiter = 0;
PL_regcc = state.cc;
PL_reg_re = state.re;
cache_re(PL_reg_re);
+ if (toggleutf) PL_reg_flags ^= RF_utf8;
/* XXXX This is too dramatic a measure... */
PL_reg_maxiter = 0;
PL_regcc = state.cc;
PL_reg_re = state.re;
cache_re(PL_reg_re);
+ if (toggleutf) PL_reg_flags ^= RF_utf8;
/* XXXX This is too dramatic a measure... */
PL_reg_maxiter = 0;
+ logical = 0;
sayNO;
}
sw = SvTRUE(ret);
logical = 0;
}
- else
+ else {
sv_setsv(save_scalar(PL_replgv), ret);
+ cache_re(oreg);
+ }
break;
}
case OPEN:
n = ARG(scan); /* which paren pair */
PL_regstartp[n] = PL_reg_start_tmp[n] - PL_bostr;
PL_regendp[n] = locinput - PL_bostr;
- if (n > *PL_reglastparen)
+ if (n > (I32)*PL_reglastparen)
*PL_reglastparen = n;
+ *PL_reglastcloseparen = n;
break;
case GROUPP:
n = ARG(scan); /* which paren pair */
- sw = (*PL_reglastparen >= n && PL_regendp[n] != -1);
+ sw = ((I32)*PL_reglastparen >= n && PL_regendp[n] != -1);
break;
case IFTHEN:
PL_reg_leftiter = PL_reg_maxiter; /* Void cache */
1) After matching X, regnode for CURLYX is processed;
- 2) This regnode creates infoblock on the stack, and calls
+ 2) This regnode creates infoblock on the stack, and calls
regmatch() recursively with the starting point at WHILEM node;
3) Each hit of WHILEM node tries to match A and Z (in the order
and whatever it mentions via ->next, and additional attached trees
corresponding to temporarily unset infoblocks as in "5" above.
- In the following picture infoblocks for outer loop of
+ In the following picture infoblocks for outer loop of
(Y(A)*?Z)*?T are denoted O, for inner I. NULL starting block
is denoted by x. The matched string is YAAZYAZT. Temporarily postponed
infoblocks are drawn below the "reset" infoblock.
PL_regcc = &cc;
/* XXXX Probably it is better to teach regpush to support
parenfloor > PL_regsize... */
- if (parenfloor > *PL_reglastparen)
+ if (parenfloor > (I32)*PL_reglastparen)
parenfloor = *PL_reglastparen; /* Pessimization... */
cc.parenfloor = parenfloor;
cc.cur = -1;
PL_reginput = locinput;
DEBUG_r(
- PerlIO_printf(Perl_debug_log,
- "%*s %ld out of %ld..%ld cc=%lx\n",
+ PerlIO_printf(Perl_debug_log,
+ "%*s %ld out of %ld..%ld cc=%"UVxf"\n",
REPORT_CODE_OFF+PL_regindent*2, "",
- (long)n, (long)cc->min,
- (long)cc->max, (long)cc)
+ (long)n, (long)cc->min,
+ (long)cc->max, PTR2UV(cc))
);
/* If degenerate scan matches "", assume scan done. */
if (PL_reg_leftiter-- == 0) {
I32 size = (PL_reg_maxiter + 7)/8;
if (PL_reg_poscache) {
- if (PL_reg_poscache_size < size) {
+ if ((I32)PL_reg_poscache_size < size) {
Renew(PL_reg_poscache, size, char);
PL_reg_poscache_size = size;
}
"%*s already tried at this position...\n",
REPORT_CODE_OFF+PL_regindent*2, "")
);
- sayNO_SILENT;
+ if (PL_reg_flags & RF_false)
+ sayYES;
+ else
+ sayNO_SILENT;
}
PL_reg_poscache[o] |= (1<<b);
}
PL_regcc = cc;
if (n >= cc->max) { /* Maximum greed exceeded? */
- if (ckWARN(WARN_REGEXP) && n >= REG_INFTY
+ if (ckWARN(WARN_REGEXP) && n >= REG_INFTY
&& !(PL_reg_flags & RF_warned)) {
PL_reg_flags |= RF_warned;
- Perl_warner(aTHX_ WARN_REGEXP, "%s limit (%d) exceeded",
+ Perl_warner(aTHX_ packWARN(WARN_REGEXP), "%s limit (%d) exceeded",
"Complex regular subexpression recursion",
REG_INFTY - 1);
}
REPORT_CODE_OFF+PL_regindent*2, "")
);
}
- if (ckWARN(WARN_REGEXP) && n >= REG_INFTY
+ if (ckWARN(WARN_REGEXP) && n >= REG_INFTY
&& !(PL_reg_flags & RF_warned)) {
PL_reg_flags |= RF_warned;
- Perl_warner(aTHX_ WARN_REGEXP, "%s limit (%d) exceeded",
+ Perl_warner(aTHX_ packWARN(WARN_REGEXP), "%s limit (%d) exceeded",
"Complex regular subexpression recursion",
REG_INFTY - 1);
}
sayNO;
}
/* NOT REACHED */
- case BRANCHJ:
+ case BRANCHJ:
next = scan + ARG(scan);
if (next == scan)
next = NULL;
inner = NEXTOPER(NEXTOPER(scan));
goto do_branch;
- case BRANCH:
+ case BRANCH:
inner = NEXTOPER(scan);
do_branch:
{
- CHECKPOINT lastcp;
c1 = OP(scan);
if (OP(next) != c1) /* No choice. */
next = inner; /* Avoid recursion. */
{
I32 l = 0;
CHECKPOINT lastcp;
-
+
/* We suppose that the next guy does not need
- backtracking: in particular, it is of constant length,
+ backtracking: in particular, it is of constant non-zero length,
and has no parenths to influence future backrefs. */
ln = ARG1(scan); /* min to match */
n = ARG2(scan); /* max to match */
if (paren) {
if (paren > PL_regsize)
PL_regsize = paren;
- if (paren > *PL_reglastparen)
+ if (paren > (I32)*PL_reglastparen)
*PL_reglastparen = paren;
}
scan = NEXTOPER(scan) + NODE_STEP_REGNODE;
minmod = 0;
if (ln && regrepeat_hard(scan, ln, &l) < ln)
sayNO;
- if (ln && l == 0 && n >= ln
- /* In fact, this is tricky. If paren, then the
- fact that we did/didnot match may influence
- future execution. */
- && !(paren && ln == 0))
- ln = n;
locinput = PL_reginput;
- if (PL_regkind[(U8)OP(next)] == EXACT) {
- c1 = (U8)*STRING(next);
- if (OP(next) == EXACTF)
- c2 = PL_fold[c1];
- else if (OP(next) == EXACTFL)
- c2 = PL_fold_locale[c1];
- else
- c2 = c1;
+ if (HAS_TEXT(next) || JUMPABLE(next)) {
+ regnode *text_node = next;
+
+ if (! HAS_TEXT(text_node)) FIND_NEXT_IMPT(text_node);
+
+ if (! HAS_TEXT(text_node)) c1 = c2 = -1000;
+ else {
+ if (PL_regkind[(U8)OP(text_node)] == REF) {
+ c1 = c2 = -1000;
+ goto assume_ok_MM;
+ }
+ else { c1 = (U8)*STRING(text_node); }
+ if (OP(text_node) == EXACTF || OP(text_node) == REFF)
+ c2 = PL_fold[c1];
+ else if (OP(text_node) == EXACTFL || OP(text_node) == REFFL)
+ c2 = PL_fold_locale[c1];
+ else
+ c2 = c1;
+ }
}
else
c1 = c2 = -1000;
+ assume_ok_MM:
REGCP_SET(lastcp);
- /* This may be improved if l == 0. */
- while (n >= ln || (n == REG_INFTY && ln > 0 && l)) { /* ln overflow ? */
+ while (n >= ln || (n == REG_INFTY && ln > 0)) { /* ln overflow ? */
/* If it could work, try it. */
if (c1 == -1000 ||
UCHARAT(PL_reginput) == c1 ||
UCHARAT(PL_reginput) == c2)
{
if (paren) {
- if (n) {
+ if (ln) {
PL_regstartp[paren] =
HOPc(PL_reginput, -l) - PL_bostr;
PL_regendp[paren] = PL_reginput - PL_bostr;
}
else {
n = regrepeat_hard(scan, n, &l);
- if (n != 0 && l == 0
- /* In fact, this is tricky. If paren, then the
- fact that we did/didnot match may influence
- future execution. */
- && !(paren && ln == 0))
- ln = n;
locinput = PL_reginput;
DEBUG_r(
PerlIO_printf(Perl_debug_log,
(IV) n, (IV)l)
);
if (n >= ln) {
- if (PL_regkind[(U8)OP(next)] == EXACT) {
- c1 = (U8)*STRING(next);
- if (OP(next) == EXACTF)
- c2 = PL_fold[c1];
- else if (OP(next) == EXACTFL)
- c2 = PL_fold_locale[c1];
- else
- c2 = c1;
+ if (HAS_TEXT(next) || JUMPABLE(next)) {
+ regnode *text_node = next;
+
+ if (! HAS_TEXT(text_node)) FIND_NEXT_IMPT(text_node);
+
+ if (! HAS_TEXT(text_node)) c1 = c2 = -1000;
+ else {
+ if (PL_regkind[(U8)OP(text_node)] == REF) {
+ c1 = c2 = -1000;
+ goto assume_ok_REG;
+ }
+ else { c1 = (U8)*STRING(text_node); }
+
+ if (OP(text_node) == EXACTF || OP(text_node) == REFF)
+ c2 = PL_fold[c1];
+ else if (OP(text_node) == EXACTFL || OP(text_node) == REFFL)
+ c2 = PL_fold_locale[c1];
+ else
+ c2 = c1;
+ }
}
else
c1 = c2 = -1000;
}
+ assume_ok_REG:
REGCP_SET(lastcp);
while (n >= ln) {
/* If it could work, try it. */
paren = scan->flags; /* Which paren to set */
if (paren > PL_regsize)
PL_regsize = paren;
- if (paren > *PL_reglastparen)
+ if (paren > (I32)*PL_reglastparen)
*PL_reglastparen = paren;
ln = ARG1(scan); /* min to match */
n = ARG2(scan); /* max to match */
* Lookahead to avoid useless match attempts
* when we know what character comes next.
*/
- if (PL_regkind[(U8)OP(next)] == EXACT) {
- c1 = (U8)*STRING(next);
- if (OP(next) == EXACTF)
- c2 = PL_fold[c1];
- else if (OP(next) == EXACTFL)
- c2 = PL_fold_locale[c1];
- else
- c2 = c1;
+
+ /*
+ * Used to only do .*x and .*?x, but now it allows
+ * for )'s, ('s and (?{ ... })'s to be in the way
+ * of the quantifier and the EXACT-like node. -- japhy
+ */
+
+ if (HAS_TEXT(next) || JUMPABLE(next)) {
+ U8 *s;
+ regnode *text_node = next;
+
+ if (! HAS_TEXT(text_node)) FIND_NEXT_IMPT(text_node);
+
+ if (! HAS_TEXT(text_node)) c1 = c2 = -1000;
+ else {
+ if (PL_regkind[(U8)OP(text_node)] == REF) {
+ c1 = c2 = -1000;
+ goto assume_ok_easy;
+ }
+ else { s = (U8*)STRING(text_node); }
+
+ if (!UTF) {
+ c2 = c1 = *s;
+ if (OP(text_node) == EXACTF || OP(text_node) == REFF)
+ c2 = PL_fold[c1];
+ else if (OP(text_node) == EXACTFL || OP(text_node) == REFFL)
+ c2 = PL_fold_locale[c1];
+ }
+ else { /* UTF */
+ if (OP(text_node) == EXACTF || OP(text_node) == REFF) {
+ STRLEN ulen1, ulen2;
+ U8 tmpbuf1[UTF8_MAXLEN_UCLC+1];
+ U8 tmpbuf2[UTF8_MAXLEN_UCLC+1];
+
+ to_utf8_lower((U8*)s, tmpbuf1, &ulen1);
+ to_utf8_upper((U8*)s, tmpbuf2, &ulen2);
+
+ c1 = utf8n_to_uvuni(tmpbuf1, UTF8_MAXLEN, 0,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ c2 = utf8n_to_uvuni(tmpbuf2, UTF8_MAXLEN, 0,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ }
+ else {
+ c2 = c1 = utf8n_to_uvchr(s, UTF8_MAXLEN, 0,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ }
+ }
+ }
}
else
c1 = c2 = -1000;
+ assume_ok_easy:
PL_reginput = locinput;
if (minmod) {
CHECKPOINT lastcp;
locinput = PL_reginput;
REGCP_SET(lastcp);
if (c1 != -1000) {
- char *e = locinput + n - ln; /* Should not check after this */
+ char *e; /* Should not check after this */
char *old = locinput;
+ int count = 0;
- if (e >= PL_regeol || (n == REG_INFTY))
+ if (n == REG_INFTY) {
e = PL_regeol - 1;
+ if (do_utf8)
+ while (UTF8_IS_CONTINUATION(*(U8*)e))
+ e--;
+ }
+ else if (do_utf8) {
+ int m = n - ln;
+ for (e = locinput;
+ m >0 && e + UTF8SKIP(e) <= PL_regeol; m--)
+ e += UTF8SKIP(e);
+ }
+ else {
+ e = locinput + n - ln;
+ if (e >= PL_regeol)
+ e = PL_regeol - 1;
+ }
while (1) {
/* Find place 'next' could work */
- if (c1 == c2) {
- while (locinput <= e && *locinput != c1)
- locinput++;
- } else {
- while (locinput <= e
- && *locinput != c1
- && *locinput != c2)
- locinput++;
+ if (!do_utf8) {
+ if (c1 == c2) {
+ while (locinput <= e &&
+ UCHARAT(locinput) != c1)
+ locinput++;
+ } else {
+ while (locinput <= e
+ && UCHARAT(locinput) != c1
+ && UCHARAT(locinput) != c2)
+ locinput++;
+ }
+ count = locinput - old;
}
- if (locinput > e)
+ else {
+ STRLEN len;
+ if (c1 == c2) {
+ /* count initialised to
+ * utf8_distance(old, locinput) */
+ while (locinput <= e &&
+ utf8n_to_uvchr((U8*)locinput,
+ UTF8_MAXLEN, &len,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY) != (UV)c1) {
+ locinput += len;
+ count++;
+ }
+ } else {
+ /* count initialised to
+ * utf8_distance(old, locinput) */
+ while (locinput <= e) {
+ UV c = utf8n_to_uvchr((U8*)locinput,
+ UTF8_MAXLEN, &len,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ if (c == (UV)c1 || c == (UV)c2)
+ break;
+ locinput += len;
+ count++;
+ }
+ }
+ }
+ if (locinput > e)
sayNO;
/* PL_reginput == old now */
if (locinput != old) {
ln = 1; /* Did some */
- if (regrepeat(scan, locinput - old) <
- locinput - old)
+ if (regrepeat(scan, count) < count)
sayNO;
}
/* PL_reginput == locinput now */
PL_reginput = locinput; /* Could be reset... */
REGCP_UNWIND(lastcp);
/* Couldn't or didn't -- move forward. */
- old = locinput++;
+ old = locinput;
+ if (do_utf8)
+ locinput += UTF8SKIP(locinput);
+ else
+ locinput++;
+ count = 1;
}
}
else
while (n >= ln || (n == REG_INFTY && ln > 0)) { /* ln overflow ? */
+ UV c;
+ if (c1 != -1000) {
+ if (do_utf8)
+ c = utf8n_to_uvchr((U8*)PL_reginput,
+ UTF8_MAXLEN, 0,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ else
+ c = UCHARAT(PL_reginput);
+ /* If it could work, try it. */
+ if (c == (UV)c1 || c == (UV)c2)
+ {
+ TRYPAREN(paren, ln, PL_reginput);
+ REGCP_UNWIND(lastcp);
+ }
+ }
/* If it could work, try it. */
- if (c1 == -1000 ||
- UCHARAT(PL_reginput) == c1 ||
- UCHARAT(PL_reginput) == c2)
+ else if (c1 == -1000)
{
- TRYPAREN(paren, n, PL_reginput);
+ TRYPAREN(paren, ln, PL_reginput);
REGCP_UNWIND(lastcp);
}
/* Couldn't or didn't -- move forward. */
n = regrepeat(scan, n);
locinput = PL_reginput;
if (ln < n && PL_regkind[(U8)OP(next)] == EOL &&
- (!PL_multiline || OP(next) == SEOL || OP(next) == EOS)) {
+ ((!PL_multiline && OP(next) != MEOL) ||
+ OP(next) == SEOL || OP(next) == EOS))
+ {
ln = n; /* why back off? */
/* ...because $ and \Z can match before *and* after
newline at the end. Consider "\n\n" =~ /\n+\Z\n/.
}
REGCP_SET(lastcp);
if (paren) {
+ UV c = 0;
while (n >= ln) {
+ if (c1 != -1000) {
+ if (do_utf8)
+ c = utf8n_to_uvchr((U8*)PL_reginput,
+ UTF8_MAXLEN, 0,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ else
+ c = UCHARAT(PL_reginput);
+ }
/* If it could work, try it. */
- if (c1 == -1000 ||
- UCHARAT(PL_reginput) == c1 ||
- UCHARAT(PL_reginput) == c2)
+ if (c1 == -1000 || c == (UV)c1 || c == (UV)c2)
{
TRYPAREN(paren, n, PL_reginput);
REGCP_UNWIND(lastcp);
}
}
else {
+ UV c = 0;
while (n >= ln) {
+ if (c1 != -1000) {
+ if (do_utf8)
+ c = utf8n_to_uvchr((U8*)PL_reginput,
+ UTF8_MAXLEN, 0,
+ ckWARN(WARN_UTF8) ?
+ 0 : UTF8_ALLOW_ANY);
+ else
+ c = UCHARAT(PL_reginput);
+ }
/* If it could work, try it. */
- if (c1 == -1000 ||
- UCHARAT(PL_reginput) == c1 ||
- UCHARAT(PL_reginput) == c2)
+ if (c1 == -1000 || c == (UV)c1 || c == (UV)c2)
{
TRYPAREN(paren, n, PL_reginput);
REGCP_UNWIND(lastcp);
case SUSPEND:
n = 1;
PL_reginput = locinput;
- goto do_ifmatch;
+ goto do_ifmatch;
case UNLESSM:
n = 0;
if (scan->flags) {
- if (UTF) { /* XXXX This is absolutely
- broken, we read before
- start of string. */
- s = HOPMAYBEc(locinput, -scan->flags);
- if (!s)
- goto say_yes;
- PL_reginput = s;
- }
- else {
- if (locinput < PL_bostr + scan->flags)
- goto say_yes;
- PL_reginput = locinput - scan->flags;
- goto do_ifmatch;
- }
+ s = HOPBACKc(locinput, scan->flags);
+ if (!s)
+ goto say_yes;
+ PL_reginput = s;
}
else
PL_reginput = locinput;
+ PL_reg_flags ^= RF_false;
goto do_ifmatch;
case IFMATCH:
n = 1;
if (scan->flags) {
- if (UTF) { /* XXXX This is absolutely
- broken, we read before
- start of string. */
- s = HOPMAYBEc(locinput, -scan->flags);
- if (!s || s < PL_bostr)
- goto say_no;
- PL_reginput = s;
- }
- else {
- if (locinput < PL_bostr + scan->flags)
- goto say_no;
- PL_reginput = locinput - scan->flags;
- goto do_ifmatch;
- }
+ s = HOPBACKc(locinput, scan->flags);
+ if (!s)
+ goto say_no;
+ PL_reginput = s;
}
else
PL_reginput = locinput;
do_ifmatch:
inner = NEXTOPER(NEXTOPER(scan));
if (regmatch(inner) != n) {
+ if (n == 0)
+ PL_reg_flags ^= RF_false;
say_no:
if (logical) {
logical = 0;
else
sayNO;
}
+ if (n == 0)
+ PL_reg_flags ^= RF_false;
say_yes:
if (logical) {
logical = 0;
{
re_unwind_branch_t *uwb = &(uw->branch);
I32 lastparen = uwb->lastparen;
-
+
REGCP_UNWIND(uwb->lastcp);
for (n = *PL_reglastparen; n > lastparen; n--)
PL_regendp[n] = -1;
*PL_reglastparen = n;
scan = next = uwb->next;
- if ( !scan ||
- OP(scan) != (uwb->type == RE_UNWIND_BRANCH
+ if ( !scan ||
+ OP(scan) != (uwb->type == RE_UNWIND_BRANCH
? BRANCH : BRANCHJ) ) { /* Failure */
unwind = uwb->prev;
#ifdef DEBUGGING
STATIC I32
S_regrepeat(pTHX_ regnode *p, I32 max)
{
- dTHR;
register char *scan;
register I32 c;
register char *loceol = PL_regeol;
register I32 hardcount = 0;
+ register bool do_utf8 = PL_reg_match_utf8;
scan = PL_reginput;
- if (max != REG_INFTY && max < loceol - scan)
+ if (max == REG_INFTY)
+ max = I32_MAX;
+ else if (max < loceol - scan)
loceol = scan + max;
switch (OP(p)) {
case REG_ANY:
- while (scan < loceol && *scan != '\n')
- scan++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ while (scan < loceol && hardcount < max && *scan != '\n') {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && *scan != '\n')
+ scan++;
+ }
break;
case SANY:
- scan = loceol;
- break;
- case ANYUTF8:
- loceol = PL_regeol;
- while (scan < loceol && *scan != '\n') {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ while (scan < loceol && hardcount < max) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
}
+ else
+ scan = loceol;
break;
- case SANYUTF8:
- loceol = PL_regeol;
- while (scan < loceol) {
- scan += UTF8SKIP(scan);
- hardcount++;
- }
+ case CANY:
+ scan = loceol;
break;
case EXACT: /* length of string is 1 */
c = (U8)*STRING(p);
(UCHARAT(scan) == c || UCHARAT(scan) == PL_fold_locale[c]))
scan++;
break;
- case ANYOFUTF8:
- loceol = PL_regeol;
- while (scan < loceol && REGINCLASSUTF8(p, (U8*)scan)) {
- scan += UTF8SKIP(scan);
- hardcount++;
- }
- break;
case ANYOF:
- while (scan < loceol && REGINCLASS(p, *scan))
- scan++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ while (hardcount < max && scan < loceol &&
+ reginclass(p, (U8*)scan, 0, do_utf8)) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && REGINCLASS(p, (U8*)scan))
+ scan++;
+ }
break;
case ALNUM:
- while (scan < loceol && isALNUM(*scan))
- scan++;
- break;
- case ALNUMUTF8:
- loceol = PL_regeol;
- while (scan < loceol && swash_fetch(PL_utf8_alnum, (U8*)scan)) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ while (hardcount < max && scan < loceol &&
+ swash_fetch(PL_utf8_alnum, (U8*)scan, do_utf8)) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && isALNUM(*scan))
+ scan++;
}
break;
case ALNUML:
PL_reg_flags |= RF_tainted;
- while (scan < loceol && isALNUM_LC(*scan))
- scan++;
- break;
- case ALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- loceol = PL_regeol;
- while (scan < loceol && isALNUM_LC_utf8((U8*)scan)) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ while (hardcount < max && scan < loceol &&
+ isALNUM_LC_utf8((U8*)scan)) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && isALNUM_LC(*scan))
+ scan++;
}
break;
- break;
case NALNUM:
- while (scan < loceol && !isALNUM(*scan))
- scan++;
- break;
- case NALNUMUTF8:
- loceol = PL_regeol;
- while (scan < loceol && !swash_fetch(PL_utf8_alnum, (U8*)scan)) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ LOAD_UTF8_CHARCLASS(alnum,"a");
+ while (hardcount < max && scan < loceol &&
+ !swash_fetch(PL_utf8_alnum, (U8*)scan, do_utf8)) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && !isALNUM(*scan))
+ scan++;
}
break;
case NALNUML:
PL_reg_flags |= RF_tainted;
- while (scan < loceol && !isALNUM_LC(*scan))
- scan++;
- break;
- case NALNUMLUTF8:
- PL_reg_flags |= RF_tainted;
- loceol = PL_regeol;
- while (scan < loceol && !isALNUM_LC_utf8((U8*)scan)) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ while (hardcount < max && scan < loceol &&
+ !isALNUM_LC_utf8((U8*)scan)) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && !isALNUM_LC(*scan))
+ scan++;
}
break;
case SPACE:
- while (scan < loceol && isSPACE(*scan))
- scan++;
- break;
- case SPACEUTF8:
- loceol = PL_regeol;
- while (scan < loceol && (*scan == ' ' || swash_fetch(PL_utf8_space,(U8*)scan))) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ LOAD_UTF8_CHARCLASS(space," ");
+ while (hardcount < max && scan < loceol &&
+ (*scan == ' ' ||
+ swash_fetch(PL_utf8_space,(U8*)scan, do_utf8))) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && isSPACE(*scan))
+ scan++;
}
break;
case SPACEL:
PL_reg_flags |= RF_tainted;
- while (scan < loceol && isSPACE_LC(*scan))
- scan++;
- break;
- case SPACELUTF8:
- PL_reg_flags |= RF_tainted;
- loceol = PL_regeol;
- while (scan < loceol && (*scan == ' ' || isSPACE_LC_utf8((U8*)scan))) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ while (hardcount < max && scan < loceol &&
+ (*scan == ' ' || isSPACE_LC_utf8((U8*)scan))) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && isSPACE_LC(*scan))
+ scan++;
}
break;
case NSPACE:
- while (scan < loceol && !isSPACE(*scan))
- scan++;
- break;
- case NSPACEUTF8:
- loceol = PL_regeol;
- while (scan < loceol && !(*scan == ' ' || swash_fetch(PL_utf8_space,(U8*)scan))) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ LOAD_UTF8_CHARCLASS(space," ");
+ while (hardcount < max && scan < loceol &&
+ !(*scan == ' ' ||
+ swash_fetch(PL_utf8_space,(U8*)scan, do_utf8))) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && !isSPACE(*scan))
+ scan++;
+ break;
}
- break;
case NSPACEL:
PL_reg_flags |= RF_tainted;
- while (scan < loceol && !isSPACE_LC(*scan))
- scan++;
- break;
- case NSPACELUTF8:
- PL_reg_flags |= RF_tainted;
- loceol = PL_regeol;
- while (scan < loceol && !(*scan == ' ' || isSPACE_LC_utf8((U8*)scan))) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ while (hardcount < max && scan < loceol &&
+ !(*scan == ' ' || isSPACE_LC_utf8((U8*)scan))) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && !isSPACE_LC(*scan))
+ scan++;
}
break;
case DIGIT:
- while (scan < loceol && isDIGIT(*scan))
- scan++;
- break;
- case DIGITUTF8:
- loceol = PL_regeol;
- while (scan < loceol && swash_fetch(PL_utf8_digit,(U8*)scan)) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ LOAD_UTF8_CHARCLASS(digit,"0");
+ while (hardcount < max && scan < loceol &&
+ swash_fetch(PL_utf8_digit, (U8*)scan, do_utf8)) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && isDIGIT(*scan))
+ scan++;
}
break;
- break;
case NDIGIT:
- while (scan < loceol && !isDIGIT(*scan))
- scan++;
- break;
- case NDIGITUTF8:
- loceol = PL_regeol;
- while (scan < loceol && !swash_fetch(PL_utf8_digit,(U8*)scan)) {
- scan += UTF8SKIP(scan);
- hardcount++;
+ if (do_utf8) {
+ loceol = PL_regeol;
+ LOAD_UTF8_CHARCLASS(digit,"0");
+ while (hardcount < max && scan < loceol &&
+ !swash_fetch(PL_utf8_digit, (U8*)scan, do_utf8)) {
+ scan += UTF8SKIP(scan);
+ hardcount++;
+ }
+ } else {
+ while (scan < loceol && !isDIGIT(*scan))
+ scan++;
}
break;
default: /* Called on something of 0 width. */
c = scan - PL_reginput;
PL_reginput = scan;
- DEBUG_r(
+ DEBUG_r(
{
SV *prop = sv_newmortal();
regprop(prop, p);
- PerlIO_printf(Perl_debug_log,
- "%*s %s can match %"IVdf" times out of %"IVdf"...\n",
+ PerlIO_printf(Perl_debug_log,
+ "%*s %s can match %"IVdf" times out of %"IVdf"...\n",
REPORT_CODE_OFF+1, "", SvPVX(prop),(IV)c,(IV)max);
});
-
+
return(c);
}
/*
- regrepeat_hard - repeatedly match something, report total lenth and length
- *
- * The repeater is supposed to have constant length.
+ *
+ * The repeater is supposed to have constant non-zero length.
*/
STATIC I32
S_regrepeat_hard(pTHX_ regnode *p, I32 max, I32 *lp)
{
- dTHR;
- register char *scan;
+ register char *scan = Nullch;
register char *start;
register char *loceol = PL_regeol;
I32 l = 0;
return 0;
start = PL_reginput;
- if (UTF) {
+ if (PL_reg_match_utf8) {
while (PL_reginput < loceol && (scan = PL_reginput, res = regmatch(p))) {
if (!count++) {
l = 0;
}
if (!res)
PL_reginput = scan;
-
+
return count;
}
/*
+- regclass_swash - prepare the utf8 swash
+*/
+
+SV *
+Perl_regclass_swash(pTHX_ register regnode* node, bool doinit, SV** listsvp, SV **altsvp)
+{
+ SV *sw = NULL;
+ SV *si = NULL;
+ SV *alt = NULL;
+
+ if (PL_regdata && PL_regdata->count) {
+ U32 n = ARG(node);
+
+ if (PL_regdata->what[n] == 's') {
+ SV *rv = (SV*)PL_regdata->data[n];
+ AV *av = (AV*)SvRV((SV*)rv);
+ SV **ary = AvARRAY(av);
+ SV **a, **b;
+
+ /* See the end of regcomp.c:S_reglass() for
+ * documentation of these array elements. */
+
+ si = *ary;
+ a = SvTYPE(ary[1]) == SVt_RV ? &ary[1] : 0;
+ b = SvTYPE(ary[2]) == SVt_PVAV ? &ary[2] : 0;
+
+ if (a)
+ sw = *a;
+ else if (si && doinit) {
+ sw = swash_init("utf8", "", si, 1, 0);
+ (void)av_store(av, 1, sw);
+ }
+ if (b)
+ alt = *b;
+ }
+ }
+
+ if (listsvp)
+ *listsvp = si;
+ if (altsvp)
+ *altsvp = alt;
+
+ return sw;
+}
+
+/*
- reginclass - determine if a character falls into a character class
+
+ The n is the ANYOF regnode, the p is the target string, lenp
+ is pointer to the maximum length of how far to go in the p
+ (if the lenp is zero, UTF8SKIP(p) is used),
+ do_utf8 tells whether the target string is in UTF-8.
+
*/
STATIC bool
-S_reginclass(pTHX_ register regnode *p, register I32 c)
+S_reginclass(pTHX_ register regnode *n, register U8* p, STRLEN* lenp, register bool do_utf8)
{
- dTHR;
- char flags = ANYOF_FLAGS(p);
+ char flags = ANYOF_FLAGS(n);
bool match = FALSE;
-
- c &= 0xFF;
- if (ANYOF_BITMAP_TEST(p, c))
- match = TRUE;
- else if (flags & ANYOF_FOLD) {
- I32 cf;
- if (flags & ANYOF_LOCALE) {
- PL_reg_flags |= RF_tainted;
- cf = PL_fold_locale[c];
+ UV c = *p;
+ STRLEN len = 0;
+ STRLEN plen;
+
+ if (do_utf8 && !UTF8_IS_INVARIANT(c))
+ c = utf8n_to_uvchr(p, UTF8_MAXLEN, &len,
+ ckWARN(WARN_UTF8) ? 0 : UTF8_ALLOW_ANY);
+
+ plen = lenp ? *lenp : UNISKIP(NATIVE_TO_UNI(c));
+ if (do_utf8 || (flags & ANYOF_UNICODE)) {
+ if (lenp)
+ *lenp = 0;
+ if (do_utf8 && !ANYOF_RUNTIME(n)) {
+ if (len != (STRLEN)-1 && c < 256 && ANYOF_BITMAP_TEST(n, c))
+ match = TRUE;
}
- else
- cf = PL_fold[c];
- if (ANYOF_BITMAP_TEST(p, cf))
+ if (!match && do_utf8 && (flags & ANYOF_UNICODE_ALL) && c >= 256)
match = TRUE;
- }
+ if (!match) {
+ AV *av;
+ SV *sw = regclass_swash(n, TRUE, 0, (SV**)&av);
+
+ if (sw) {
+ if (swash_fetch(sw, p, do_utf8))
+ match = TRUE;
+ else if (flags & ANYOF_FOLD) {
+ if (!match && lenp && av) {
+ I32 i;
+
+ for (i = 0; i <= av_len(av); i++) {
+ SV* sv = *av_fetch(av, i, FALSE);
+ STRLEN len;
+ char *s = SvPV(sv, len);
+
+ if (len <= plen && memEQ(s, (char*)p, len)) {
+ *lenp = len;
+ match = TRUE;
+ break;
+ }
+ }
+ }
+ if (!match) {
+ U8 tmpbuf[UTF8_MAXLEN_FOLD+1];
+ STRLEN tmplen;
- if (!match && (flags & ANYOF_CLASS)) {
- PL_reg_flags |= RF_tainted;
- if (
- (ANYOF_CLASS_TEST(p, ANYOF_ALNUM) && isALNUM_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NALNUM) && !isALNUM_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_SPACE) && isSPACE_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NSPACE) && !isSPACE_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_DIGIT) && isDIGIT_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NDIGIT) && !isDIGIT_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_ALNUMC) && isALNUMC_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NALNUMC) && !isALNUMC_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_ALPHA) && isALPHA_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NALPHA) && !isALPHA_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_ASCII) && isASCII(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NASCII) && !isASCII(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_CNTRL) && isCNTRL_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NCNTRL) && !isCNTRL_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_GRAPH) && isGRAPH_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NGRAPH) && !isGRAPH_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_LOWER) && isLOWER_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NLOWER) && !isLOWER_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_PRINT) && isPRINT_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NPRINT) && !isPRINT_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_PUNCT) && isPUNCT_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NPUNCT) && !isPUNCT_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_UPPER) && isUPPER_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NUPPER) && !isUPPER_LC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_XDIGIT) && isXDIGIT(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NXDIGIT) && !isXDIGIT(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_PSXSPC) && isPSXSPC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NPSXSPC) && !isPSXSPC(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_BLANK) && isBLANK(c)) ||
- (ANYOF_CLASS_TEST(p, ANYOF_NBLANK) && !isBLANK(c))
- ) /* How's that for a conditional? */
- {
- match = TRUE;
+ to_utf8_fold(p, tmpbuf, &tmplen);
+ if (swash_fetch(sw, tmpbuf, do_utf8))
+ match = TRUE;
+ }
+ }
+ }
}
+ if (match && lenp && *lenp == 0)
+ *lenp = UNISKIP(NATIVE_TO_UNI(c));
}
+ if (!match && c < 256) {
+ if (ANYOF_BITMAP_TEST(n, c))
+ match = TRUE;
+ else if (flags & ANYOF_FOLD) {
+ U8 f;
- return (flags & ANYOF_INVERT) ? !match : match;
-}
-
-STATIC bool
-S_reginclassutf8(pTHX_ regnode *f, U8 *p)
-{
- dTHR;
- char flags = ARG1(f);
- bool match = FALSE;
- SV *sv = (SV*)PL_regdata->data[ARG2(f)];
-
- if (swash_fetch(sv, p))
- match = TRUE;
- else if (flags & ANYOF_FOLD) {
- U8 tmpbuf[UTF8_MAXLEN];
- if (flags & ANYOF_LOCALE) {
+ if (flags & ANYOF_LOCALE) {
+ PL_reg_flags |= RF_tainted;
+ f = PL_fold_locale[c];
+ }
+ else
+ f = PL_fold[c];
+ if (f != c && ANYOF_BITMAP_TEST(n, f))
+ match = TRUE;
+ }
+
+ if (!match && (flags & ANYOF_CLASS)) {
PL_reg_flags |= RF_tainted;
- uv_to_utf8(tmpbuf, toLOWER_LC_utf8(p));
+ if (
+ (ANYOF_CLASS_TEST(n, ANYOF_ALNUM) && isALNUM_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NALNUM) && !isALNUM_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_SPACE) && isSPACE_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NSPACE) && !isSPACE_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_DIGIT) && isDIGIT_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NDIGIT) && !isDIGIT_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_ALNUMC) && isALNUMC_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NALNUMC) && !isALNUMC_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_ALPHA) && isALPHA_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NALPHA) && !isALPHA_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_ASCII) && isASCII(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NASCII) && !isASCII(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_CNTRL) && isCNTRL_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NCNTRL) && !isCNTRL_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_GRAPH) && isGRAPH_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NGRAPH) && !isGRAPH_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_LOWER) && isLOWER_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NLOWER) && !isLOWER_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_PRINT) && isPRINT_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NPRINT) && !isPRINT_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_PUNCT) && isPUNCT_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NPUNCT) && !isPUNCT_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_UPPER) && isUPPER_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NUPPER) && !isUPPER_LC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_XDIGIT) && isXDIGIT(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NXDIGIT) && !isXDIGIT(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_PSXSPC) && isPSXSPC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NPSXSPC) && !isPSXSPC(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_BLANK) && isBLANK(c)) ||
+ (ANYOF_CLASS_TEST(n, ANYOF_NBLANK) && !isBLANK(c))
+ ) /* How's that for a conditional? */
+ {
+ match = TRUE;
+ }
}
- else
- uv_to_utf8(tmpbuf, toLOWER_utf8(p));
- if (swash_fetch(sv, tmpbuf))
- match = TRUE;
}
- /* UTF8 combined with ANYOF_CLASS is ill-defined. */
-
return (flags & ANYOF_INVERT) ? !match : match;
}
STATIC U8 *
S_reghop(pTHX_ U8 *s, I32 off)
-{
- dTHR;
+{
+ return S_reghop3(aTHX_ s, off, (U8*)(off >= 0 ? PL_regeol : PL_bostr));
+}
+
+STATIC U8 *
+S_reghop3(pTHX_ U8 *s, I32 off, U8* lim)
+{
if (off >= 0) {
- while (off-- && s < (U8*)PL_regeol)
+ while (off-- && s < lim) {
+ /* XXX could check well-formedness here */
s += UTF8SKIP(s);
+ }
}
else {
while (off++) {
- if (s > (U8*)PL_bostr) {
+ if (s > lim) {
s--;
- if (*s & 0x80) {
- while (s > (U8*)PL_bostr && (*s & 0xc0) == 0x80)
+ if (UTF8_IS_CONTINUED(*s)) {
+ while (s > (U8*)lim && UTF8_IS_CONTINUATION(*s))
s--;
- } /* XXX could check well-formedness here */
+ }
+ /* XXX could check well-formedness here */
}
}
}
}
STATIC U8 *
-S_reghopmaybe(pTHX_ U8* s, I32 off)
+S_reghopmaybe(pTHX_ U8 *s, I32 off)
+{
+ return S_reghopmaybe3(aTHX_ s, off, (U8*)(off >= 0 ? PL_regeol : PL_bostr));
+}
+
+STATIC U8 *
+S_reghopmaybe3(pTHX_ U8* s, I32 off, U8* lim)
{
- dTHR;
if (off >= 0) {
- while (off-- && s < (U8*)PL_regeol)
+ while (off-- && s < lim) {
+ /* XXX could check well-formedness here */
s += UTF8SKIP(s);
+ }
if (off >= 0)
return 0;
}
else {
while (off++) {
- if (s > (U8*)PL_bostr) {
+ if (s > lim) {
s--;
- if (*s & 0x80) {
- while (s > (U8*)PL_bostr && (*s & 0xc0) == 0x80)
+ if (UTF8_IS_CONTINUED(*s)) {
+ while (s > (U8*)lim && UTF8_IS_CONTINUATION(*s))
s--;
- } /* XXX could check well-formedness here */
+ }
+ /* XXX could check well-formedness here */
}
else
break;
return s;
}
-#ifdef PERL_OBJECT
-#include "XSUB.h"
-#endif
-
static void
-restore_pos(pTHXo_ void *arg)
+restore_pos(pTHX_ void *arg)
{
- dTHR;
if (PL_reg_eval_set) {
if (PL_reg_oldsaved) {
PL_reg_re->subbeg = PL_reg_oldsaved;
PL_reg_re->sublen = PL_reg_oldsavedlen;
+#ifdef PERL_COPY_ON_WRITE
+ PL_reg_re->saved_copy = PL_nrs;
+#endif
RX_MATCH_COPIED_on(PL_reg_re);
}
PL_reg_magic->mg_len = PL_reg_oldpos;
PL_curpm = PL_reg_oldcurpm;
}
}
+
+STATIC void
+S_to_utf8_substr(pTHX_ register regexp *prog)
+{
+ SV* sv;
+ if (prog->float_substr && !prog->float_utf8) {
+ prog->float_utf8 = sv = NEWSV(117, 0);
+ SvSetSV(sv, prog->float_substr);
+ sv_utf8_upgrade(sv);
+ if (SvTAIL(prog->float_substr))
+ SvTAIL_on(sv);
+ if (prog->float_substr == prog->check_substr)
+ prog->check_utf8 = sv;
+ }
+ if (prog->anchored_substr && !prog->anchored_utf8) {
+ prog->anchored_utf8 = sv = NEWSV(118, 0);
+ SvSetSV(sv, prog->anchored_substr);
+ sv_utf8_upgrade(sv);
+ if (SvTAIL(prog->anchored_substr))
+ SvTAIL_on(sv);
+ if (prog->anchored_substr == prog->check_substr)
+ prog->check_utf8 = sv;
+ }
+}
+
+STATIC void
+S_to_byte_substr(pTHX_ register regexp *prog)
+{
+ SV* sv;
+ if (prog->float_utf8 && !prog->float_substr) {
+ prog->float_substr = sv = NEWSV(117, 0);
+ SvSetSV(sv, prog->float_utf8);
+ if (sv_utf8_downgrade(sv, TRUE)) {
+ if (SvTAIL(prog->float_utf8))
+ SvTAIL_on(sv);
+ } else {
+ SvREFCNT_dec(sv);
+ prog->float_substr = sv = &PL_sv_undef;
+ }
+ if (prog->float_utf8 == prog->check_utf8)
+ prog->check_substr = sv;
+ }
+ if (prog->anchored_utf8 && !prog->anchored_substr) {
+ prog->anchored_substr = sv = NEWSV(118, 0);
+ SvSetSV(sv, prog->anchored_utf8);
+ if (sv_utf8_downgrade(sv, TRUE)) {
+ if (SvTAIL(prog->anchored_utf8))
+ SvTAIL_on(sv);
+ } else {
+ SvREFCNT_dec(sv);
+ prog->anchored_substr = sv = &PL_sv_undef;
+ }
+ if (prog->anchored_utf8 == prog->check_utf8)
+ prog->check_substr = sv;
+ }
+}
https://perl5.git.perl.org / perl5.git / blobdiff